Add column number into errorformat

At some point, sbt added column numbers to its error messages.
This handles them.

Author: pritchett

compiler/sbt.vim

@@ -20,8 +20,8 @@ set cpo-=C
 CompilerSet makeprg=sbt\ -Dsbt.log.noformat=true\ compile
 
 CompilerSet errorformat=
-      \%E\ %#[error]\ %f:%l:\ %m,%C\ %#[error]\ %p^,%-C%.%#,%Z,
-      \%W\ %#[warn]\ %f:%l:\ %m,%C\ %#[warn]\ %p^,%-C%.%#,%Z,
+      \%E\ %#[error]\ %f:%l:%c:\ %m,%C\ %#[error]\ %p^,%-C%.%#,%Z,
+      \%W\ %#[warn]\ %f:%l:%c:\ %m,%C\ %#[warn]\ %p^,%-C%.%#,%Z,
       \%-G%.%#
 
 let &cpo = s:cpo_save