patch 8.0.1144: using wrong #ifdef for computing length

Problem:    Using wrong #ifdef for computing length.
Solution:   use BACKSLASH_IN_FILENAME instead of COLON_IN_FILENAME. (Yasuhiro
            Matsomoto, closes #2153)

Author: brammool

src/quickfix.c

@@ -443,8 +443,8 @@ parse_efm_option(char_u *efm)
     i = (FMT_PATTERNS * 3) + ((int)STRLEN(efm) << 2);
     for (round = FMT_PATTERNS; round > 0; )
 	i += (int)STRLEN(fmt_pat[--round].pattern);
-#ifdef COLON_IN_FILENAME
-    i += 12; /* "%f" can become twelve chars longer */
+#ifdef BACKSLASH_IN_FILENAME
+    i += 12; /* "%f" can become twelve chars longer (see efm_to_regpat) */
 #else
     i += 2; /* "%f" can become two chars longer */
 #endif

src/version.c

@@ -761,6 +761,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1144,
 /**/
     1143,
 /**/