Use breakindent on supported versions of vim

.vimrc

@@ -182,6 +182,12 @@ set number
 set cursorline
 syntax on
 
+if v:version >= 704 && has('patch338')
+    " automatically indents wrapped lines up to the previous line. You can also
+    " use the showbreak option to automatically indent the line even more
+    set breakindent
+endif
+
 " Show tabs and trailspaces
 set listchars=tab:▸\ ,trail:·
 " Display whitespace