[BUGFIX](#388) Git untrack for multi-selection
[BUGFIX](#388) Git untrack for multi-selection

At workspace selecting some files and then doing 'git untrack'. then untracked a single file only.

Signed-off-by: Minsung Jin <2910fb96ff39ee002e780a062fdab6cb76e3e7a8@samsung.com>

changgyun/webida-client,cimfalab/webida-client,leechwin/webida-client,webida/webida-client,wing9405/webida-client,wing9405/webida-client,hyukmin-kwon/webida-client,leechwin/webida-client,happibum/webida-client,wing9405/webida-client,yoonhyung/webida-client,yoonhyung/webida-client,happibum/webida-client,gotchazipc/webida-client,happibum/webida-client,gotchazipc/webida-client,wcho/webida-client,minsung-jin/webida-client,wcho/webida-client,gseok/webida-client,JunsikShim/webida-client,hyukmin-kwon/webida-client,happibum/webida-client,changgyun/webida-client,kyungmi/webida-client,minsung-jin/webida-client,webida/webida-client,JunsikShim/webida-client,happibum/webida-client,minsung-jin/webida-client,leechwin/webida-client,wcho/webida-client,gseok/webida-client,JunsikShim/webida-client,leechwin/webida-client,changgyun/webida-client,minsung-jin/webida-client,cimfalab/webida-client,yoonhyung/webida-client,gotchazipc/webida-client,wcho/webida-client,cimfalab/webida-client,cimfalab/webida-client,minsung-jin/webida-client,JunsikShim/webida-client,gseok/webida-client,kyungmi/webida-client,hyukmin-kwon/webida-client,changgyun-woo/webida-client,leechwin/webida-client,gseok/webida-client,webida/webida-client,gseok/webida-client,changgyun-woo/webida-client,kyungmi/webida-client,JunsikShim/webida-client,changgyun/webida-client,wing9405/webida-client,yoonhyung/webida-client,gotchazipc/webida-client,wing9405/webida-client,yoonhyung/webida-client,happibum/webida-client,webida/webida-client,changgyun/webida-client,yoonhyung/webida-client,wcho/webida-client,changgyun-woo/webida-client,gseok/webida-client,webida/webida-client,gotchazipc/webida-client,hyukmin-kwon/webida-client,JunsikShim/webida-client,wcho/webida-client,cimfalab/webida-client,kyungmi/webida-client,leechwin/webida-client,hyukmin-kwon/webida-client,webida/webida-client,wing9405/webida-client,hyukmin-kwon/webida-client,kyungmi/webida-client,minsung-jin/webida-client,changgyun/webida-client,gotchazipc/webida-client,changgyun-woo/webida-client,changgyun-woo/webida-client,kyungmi/webida-client,changgyun-woo/webida-client,cimfalab/webida-client