vim-patch:7.4.295 #833

Problem:    Various typos, bad white space and unclear comments.
Solution:   Fix typos.  Improve white space. Update comments.

https://code.google.com/p/vim/source/detail?r=662ae48e7e246a63d38c9f3165b15b62252edaee

src/nvim/os_unix.c

@@ -837,7 +837,7 @@ void check_mouse_termcode()
     }
   } else
     del_mouse_termcode(KS_URXVT_MOUSE);
-  /* same as the dec mouse */
+  /* There is no conflict with xterm mouse */
   if (use_xterm_mouse() == 4
       ) {
     set_mouse_termcode(KS_SGR_MOUSE, (char_u *)(term_is_8bit(T_NAME)