updated for version 7.4.082

Problem:    Using "gf" in a changed buffer suggests adding "!", which is not
            possible. (Tim Chase)
Solution:   Pass a flag to check_changed() wether adding ! make sense.

src/vim.h

@@ -1175,6 +1175,15 @@ extern char *(*dyn_libintl_textdomain)(const char *domainname);
 #define RESIZE_HOR	2	/* resize horizontally */
 #define RESIZE_BOTH	15	/* resize in both directions */
 
+/*
+ * flags for check_changed()
+ */
+#define CCGD_AW		1	/* do autowrite if buffer was changed */
+#define CCGD_MULTWIN	2	/* check also when several wins for the buf */
+#define CCGD_FORCEIT	4	/* ! used */
+#define CCGD_ALLBUF	8	/* may write all buffers */
+#define CCGD_EXCMD	16	/* may suggest using ! */
+
 /*
  * "flags" values for option-setting functions.
  * When OPT_GLOBAL and OPT_LOCAL are both missing, set both local and global