tools/upip.py: Use "raise arg" instead of no-arg raise form, for native.
tools/upip.py: Use "raise arg" instead of no-arg raise form, for native.

adafruit/circuitpython,henriknelson/micropython,tobbad/micropython,adafruit/circuitpython,pramasoul/micropython,pozetroninc/micropython,MrSurly/micropython,pozetroninc/micropython,pramasoul/micropython,bvernoux/micropython,pramasoul/micropython,MrSurly/micropython,tobbad/micropython,bvernoux/micropython,selste/micropython,kerneltask/micropython,selste/micropython,trezor/micropython,trezor/micropython,adafruit/circuitpython,adafruit/circuitpython,MrSurly/micropython,trezor/micropython,tobbad/micropython,adafruit/circuitpython,tobbad/micropython,pramasoul/micropython,trezor/micropython,henriknelson/micropython,pozetroninc/micropython,selste/micropython,pfalcon/micropython,bvernoux/micropython,MrSurly/micropython,bvernoux/micropython,kerneltask/micropython,bvernoux/micropython,kerneltask/micropython,trezor/micropython,pfalcon/micropython,pozetroninc/micropython,pfalcon/micropython,henriknelson/micropython,pramasoul/micropython,pfalcon/micropython,kerneltask/micropython,adafruit/circuitpython,selste/micropython,tobbad/micropython,henriknelson/micropython,selste/micropython,henriknelson/micropython,pfalcon/micropython,kerneltask/micropython,MrSurly/micropython,pozetroninc/micropython