gitgetbranch: Resolve duplicated entries with sort | uniq
gitgetbranch: Resolve duplicated entries with sort | uniq

Change-Id: I880b79461a4fc2b384de1974e6e53eb00cd4fd82
Signed-off-by: Adrian DC <01fb3892f39957945220431e7409156544d2f041@gmail.com>

AdrianDC/android_development_shell_tools,AdrianDC/android_development_shell_tools