py: Use C99 way of variable macro arguments.
py: Use C99 way of variable macro arguments.

Addresses Issue #207.

lowRISC/micropython,lowRISC/micropython,trezor/micropython,jlillest/micropython,pfalcon/micropython,Peetz0r/micropython-esp32,PappaPeppar/micropython,Vogtinator/micropython,bvernoux/micropython,TDAbboud/micropython,cloudformdesign/micropython,lbattraw/micropython,martinribelotta/micropython,adafruit/circuitpython,ernesto-g/micropython,blazewicz/micropython,suda/micropython,pozetroninc/micropython,galenhz/micropython,SHA2017-badge/micropython-esp32,drrk/micropython,dxxb/micropython,EcmaXp/micropython,skybird6672/micropython,pfalcon/micropython,martinribelotta/micropython,ganshun666/micropython,supergis/micropython,kerneltask/micropython,vitiral/micropython,skybird6672/micropython,puuu/micropython,tralamazza/micropython,kostyll/micropython,cloudformdesign/micropython,redbear/micropython,praemdonck/micropython,galenhz/micropython,pramasoul/micropython,aitjcize/micropython,redbear/micropython,vriera/micropython,noahchense/micropython,Peetz0r/micropython-esp32,dhylands/micropython,AriZuu/micropython,rubencabrera/micropython,swegener/micropython,blmorris/micropython,ernesto-g/micropython,kostyll/micropython,vriera/micropython,mgyenik/micropython,tdautc19841202/micropython,cwyark/micropython,SungEun-Steve-Kim/test-mp,heisewangluo/micropython,tdautc19841202/micropython,paul-xxx/micropython,ryannathans/micropython,dmazzella/micropython,mhoffma/micropython,matthewelse/micropython,praemdonck/micropython,trezor/micropython,ahotam/micropython,lbattraw/micropython,PappaPeppar/micropython,suda/micropython,kostyll/micropython,ericsnowcurrently/micropython,heisewangluo/micropython,suda/micropython,tobbad/micropython,kerneltask/micropython,hiway/micropython,warner83/micropython,orionrobots/micropython,aethaniel/micropython,puuu/micropython,galenhz/micropython,alex-march/micropython,utopiaprince/micropython,mianos/micropython,swegener/micropython,ganshun666/micropython,firstval/micropython,vriera/micropython,xyb/micropython,utopiaprince/micropython,ChuckM/micropython,firstval/micropython,kostyll/micropython,stonegithubs/micropython,methoxid/micropystat,swegener/micropython,tuc-osg/micropython,dhylands/micropython,supergis/micropython,SHA2017-badge/micropython-esp32,EcmaXp/micropython,stonegithubs/micropython,danicampora/micropython,jimkmc/micropython,mhoffma/micropython,bvernoux/micropython,suda/micropython,hosaka/micropython,MrSurly/micropython-esp32,mgyenik/micropython,pramasoul/micropython,selste/micropython,suda/micropython,noahwilliamsson/micropython,xhat/micropython,trezor/micropython,adamkh/micropython,MrSurly/micropython,dhylands/micropython,heisewangluo/micropython,methoxid/micropystat,MrSurly/micropython-esp32,alex-robbins/micropython,mpalomer/micropython,trezor/micropython,pramasoul/micropython,slzatz/micropython,adamkh/micropython,ChuckM/micropython,hiway/micropython,warner83/micropython,alex-march/micropython,jlillest/micropython,selste/micropython,supergis/micropython,utopiaprince/micropython,jimkmc/micropython,adafruit/circuitpython,misterdanb/micropython,aethaniel/micropython,adafruit/circuitpython,aitjcize/micropython,dmazzella/micropython,misterdanb/micropython,jmarcelino/pycom-micropython,alex-robbins/micropython,mpalomer/micropython,micropython/micropython-esp32,jlillest/micropython,praemdonck/micropython,ericsnowcurrently/micropython,Vogtinator/micropython,torwag/micropython,mianos/micropython,bvernoux/micropython,ahotam/micropython,infinnovation/micropython,utopiaprince/micropython,matthewelse/micropython,Timmenem/micropython,noahwilliamsson/micropython,mianos/micropython,mianos/micropython,drrk/micropython,hosaka/micropython,KISSMonX/micropython,adamkh/micropython,ernesto-g/micropython,drrk/micropython,omtinez/micropython,noahwilliamsson/micropython,infinnovation/micropython,deshipu/micropython,Timmenem/micropython,misterdanb/micropython,dinau/micropython,warner83/micropython,MrSurly/micropython-esp32,cnoviello/micropython,pfalcon/micropython,ericsnowcurrently/micropython,oopy/micropython,xuxiaoxin/micropython,alex-march/micropython,vriera/micropython,firstval/micropython,vitiral/micropython,chrisdearman/micropython,turbinenreiter/micropython,slzatz/micropython,redbear/micropython,cnoviello/micropython,kostyll/micropython,methoxid/micropystat,feilongfl/micropython,xyb/micropython,aethaniel/micropython,hiway/micropython,dinau/micropython,supergis/micropython,tuc-osg/micropython,toolmacher/micropython,henriknelson/micropython,lbattraw/micropython,noahchense/micropython,blmorris/micropython,tobbad/micropython,feilongfl/micropython,noahwilliamsson/micropython,tdautc19841202/micropython,pozetroninc/micropython,pozetroninc/micropython,blmorris/micropython,heisewangluo/micropython,adafruit/circuitpython,rubencabrera/micropython,MrSurly/micropython,neilh10/micropython,ruffy91/micropython,stonegithubs/micropython,emfcamp/micropython,cwyark/micropython,torwag/micropython,MrSurly/micropython,henriknelson/micropython,trezor/micropython,selste/micropython,galenhz/micropython,ruffy91/micropython,toolmacher/micropython,jlillest/micropython,ceramos/micropython,ruffy91/micropython,rubencabrera/micropython,xyb/micropython,micropython/micropython-esp32,KISSMonX/micropython,emfcamp/micropython,adamkh/micropython,tuc-osg/micropython,adafruit/circuitpython,emfcamp/micropython,xyb/micropython,orionrobots/micropython,lbattraw/micropython,misterdanb/micropython,puuu/micropython,infinnovation/micropython,TDAbboud/micropython,emfcamp/micropython,orionrobots/micropython,dxxb/micropython,lowRISC/micropython,AriZuu/micropython,aethaniel/micropython,blmorris/micropython,HenrikSolver/micropython,rubencabrera/micropython,dinau/micropython,oopy/micropython,matthewelse/micropython,adamkh/micropython,blmorris/micropython,alex-robbins/micropython,chrisdearman/micropython,torwag/micropython,praemdonck/micropython,MrSurly/micropython-esp32,kerneltask/micropython,adafruit/micropython,aethaniel/micropython,kerneltask/micropython,tralamazza/micropython,orionrobots/micropython,jmarcelino/pycom-micropython,omtinez/micropython,turbinenreiter/micropython,tdautc19841202/micropython,mianos/micropython,dxxb/micropython,blazewicz/micropython,cnoviello/micropython,pfalcon/micropython,hiway/micropython,tobbad/micropython,rubencabrera/micropython,dmazzella/micropython,danicampora/micropython,supergis/micropython,paul-xxx/micropython,ahotam/micropython,warner83/micropython,praemdonck/micropython,Timmenem/micropython,ganshun666/micropython,feilongfl/micropython,Vogtinator/micropython,skybird6672/micropython,dxxb/micropython,puuu/micropython,bvernoux/micropython,puuu/micropython,ChuckM/micropython,xhat/micropython,hosaka/micropython,galenhz/micropython,xuxiaoxin/micropython,Peetz0r/micropython-esp32,turbinenreiter/micropython,henriknelson/micropython,henriknelson/micropython,feilongfl/micropython,cnoviello/micropython,slzatz/micropython,PappaPeppar/micropython,ericsnowcurrently/micropython,martinribelotta/micropython,mhoffma/micropython,ernesto-g/micropython,tobbad/micropython,noahchense/micropython,drrk/micropython,torwag/micropython,ceramos/micropython,xuxiaoxin/micropython,matthewelse/micropython,deshipu/micropython,HenrikSolver/micropython,SungEun-Steve-Kim/test-mp,oopy/micropython,orionrobots/micropython,tobbad/micropython,Peetz0r/micropython-esp32,Vogtinator/micropython,lowRISC/micropython,KISSMonX/micropython,cloudformdesign/micropython,vitiral/micropython,mgyenik/micropython,SHA2017-badge/micropython-esp32,vriera/micropython,bvernoux/micropython,ericsnowcurrently/micropython,vitiral/micropython,cwyark/micropython,TDAbboud/micropython,ruffy91/micropython,pramasoul/micropython,stonegithubs/micropython,kerneltask/micropython,utopiaprince/micropython,chrisdearman/micropython,lowRISC/micropython,oopy/micropython,noahchense/micropython,danicampora/micropython,redbear/micropython,omtinez/micropython,noahchense/micropython,ryannathans/micropython,cwyark/micropython,PappaPeppar/micropython,adafruit/micropython,aitjcize/micropython,blazewicz/micropython,ernesto-g/micropython,mpalomer/micropython,deshipu/micropython,cwyark/micropython,mgyenik/micropython,mhoffma/micropython,pramasoul/micropython,HenrikSolver/micropython,aitjcize/micropython,xyb/micropython,vitiral/micropython,tdautc19841202/micropython,lbattraw/micropython,matthewelse/micropython,cnoviello/micropython,dhylands/micropython,dxxb/micropython,jmarcelino/pycom-micropython,slzatz/micropython,tuc-osg/micropython,skybird6672/micropython,neilh10/micropython,HenrikSolver/micropython,TDAbboud/micropython,xuxiaoxin/micropython,dinau/micropython,slzatz/micropython,jmarcelino/pycom-micropython,jimkmc/micropython,matthewelse/micropython,AriZuu/micropython,adafruit/circuitpython,misterdanb/micropython,mhoffma/micropython,PappaPeppar/micropython,alex-march/micropython,paul-xxx/micropython,ganshun666/micropython,xhat/micropython,omtinez/micropython,pozetroninc/micropython,KISSMonX/micropython,dmazzella/micropython,infinnovation/micropython,Timmenem/micropython,AriZuu/micropython,firstval/micropython,SungEun-Steve-Kim/test-mp,paul-xxx/micropython,methoxid/micropystat,Peetz0r/micropython-esp32,omtinez/micropython,MrSurly/micropython,adafruit/micropython,micropython/micropython-esp32,AriZuu/micropython,micropython/micropython-esp32,ahotam/micropython,EcmaXp/micropython,cloudformdesign/micropython,neilh10/micropython,oopy/micropython,jlillest/micropython,methoxid/micropystat,swegener/micropython,MrSurly/micropython-esp32,neilh10/micropython,ceramos/micropython,ChuckM/micropython,heisewangluo/micropython,warner83/micropython,danicampora/micropython,jimkmc/micropython,alex-robbins/micropython,Vogtinator/micropython,hiway/micropython,ryannathans/micropython,paul-xxx/micropython,SHA2017-badge/micropython-esp32,swegener/micropython,ceramos/micropython,toolmacher/micropython,torwag/micropython,ceramos/micropython,hosaka/micropython,toolmacher/micropython,MrSurly/micropython,turbinenreiter/micropython,jmarcelino/pycom-micropython,infinnovation/micropython,feilongfl/micropython,SungEun-Steve-Kim/test-mp,mgyenik/micropython,EcmaXp/micropython,stonegithubs/micropython,redbear/micropython,xuxiaoxin/micropython,ganshun666/micropython,pfalcon/micropython,KISSMonX/micropython,SungEun-Steve-Kim/test-mp,xhat/micropython,adafruit/micropython,henriknelson/micropython,alex-robbins/micropython,ahotam/micropython,hosaka/micropython,turbinenreiter/micropython,pozetroninc/micropython,micropython/micropython-esp32,cloudformdesign/micropython,ryannathans/micropython,blazewicz/micropython,neilh10/micropython,toolmacher/micropython,SHA2017-badge/micropython-esp32,Timmenem/micropython,deshipu/micropython,ChuckM/micropython,tuc-osg/micropython,chrisdearman/micropython,dhylands/micropython,EcmaXp/micropython,xhat/micropython,blazewicz/micropython,drrk/micropython,jimkmc/micropython,skybird6672/micropython,HenrikSolver/micropython,ruffy91/micropython,martinribelotta/micropython,emfcamp/micropython,chrisdearman/micropython,martinribelotta/micropython,TDAbboud/micropython,mpalomer/micropython,ryannathans/micropython,dinau/micropython,firstval/micropython,deshipu/micropython,tralamazza/micropython,danicampora/micropython,adafruit/micropython,selste/micropython,noahwilliamsson/micropython,tralamazza/micropython,mpalomer/micropython,alex-march/micropython,selste/micropython