gitunshallow: Resolve branch variable quoting SC2086
gitunshallow: Resolve branch variable quoting SC2086

Change-Id: I30531b6aaee1e5a295b3f8121cde62d25c087c09
Signed-off-by: Adrian DC <01fb3892f39957945220431e7409156544d2f041@gmail.com>

AdrianDC/android_development_shell_tools,AdrianDC/android_development_shell_tools