* jl/fix-test:
t1020: Get rid of 'cd "$HERE"' at the start of each test
t2016 (checkout -p): add missing &&
t1302 (core.repositoryversion): style tweaks
t2105 (gitfile): add missing &&
t1450 (fsck): remove dangling objects
tests: subshell indentation stylefix
Several tests: cd inside subshell instead of around