Rename sign definitions and simplify sign-ing

autoload/vundle.vim

@@ -28,10 +28,10 @@ au Filetype  vundle    call vundle#scripts#setup_view()
 au Syntax    vim       syn keyword vimCommand Bundle
 
 if (has('signs'))
-sign define VuEr text=!  texthl=Error
-sign define VuAc text=>  texthl=Comment
-sign define VuCu text=.  texthl=Comment
-sign define VuUp text=+  texthl=Comment
+sign define Vu_error    text=!  texthl=Error
+sign define Vu_active   text=>  texthl=Comment
+sign define Vu_todate   text=.  texthl=Comment
+sign define Vu_updated  text=+  texthl=Comment
 endif
 
 

autoload/vundle/installer.vim

@@ -46,9 +46,7 @@ func! s:sign(status)
     return
   endif
 
-  let markers = {'updated': 'VuUp', 'todate': 'VuCu', 'error': 'VuEr', 'active': 'VuAc' }
-  let marker = markers[a:status]
-  exe ":sign place ".line('.')." line=".line('.')." name=". marker ." buffer=" . bufnr("%")
+  exe ":sign place ".line('.')." line=".line('.')." name=Vu_". a:status ." buffer=" . bufnr("%")
 endf
 
 func! vundle#installer#install(bang, name) abort