_lp_bzr_branch_color: fix undeclared $ret
_lp_bzr_branch_color: fix undeclared $ret

joshuarubin/dotfiles,alexprengere/liquidprompt,dpilone/liquidprompt,milouse/liquidprompt,BobHood/liquidprompt,dtschan/liquidprompt,nojhan/liquidprompt,joshuarubin/dotfiles,joshuarubin/dotfiles,pkkolos/liquidprompt,tsbarnes/liquidprompt,joshuarubin/dotfiles,jaesivsm/liquidprompt,laurentbardin/liquidprompt,dan-cleinmark/liquidprompt,smadhueagle/liquidprompt