" Number lines.
set number
-" Don't add unsolicited final newline.
-set binary
+"" Don't add unsolicited final newline.
+"set binary
" Indentation rules (tabs to 4 spaces).
set expandtab
-set shiftwidth=4
-set softtabstop=4
+set shiftwidth=2
+set softtabstop=2
" Backups.
set backup