Fix example versions in generate_releaserst.xsh command
Fix example versions in generate_releaserst.xsh command

[ci skip]
larrybradley/astropy,pllim/astropy,astropy/astropy,lpsinger/astropy,larrybradley/astropy,saimn/astropy,lpsinger/astropy,mhvk/astropy,astropy/astropy,saimn/astropy,mhvk/astropy,pllim/astropy,mhvk/astropy,larrybradley/astropy,StuartLittlefair/astropy,larrybradley/astropy,StuartLittlefair/astropy,astropy/astropy,saimn/astropy,larrybradley/astropy,lpsinger/astropy,StuartLittlefair/astropy,mhvk/astropy,pllim/astropy,pllim/astropy,StuartLittlefair/astropy,pllim/astropy,saimn/astropy,StuartLittlefair/astropy,astropy/astropy,astropy/astropy,saimn/astropy,mhvk/astropy,lpsinger/astropy,lpsinger/astropy