updated for version 7.4.245

Problem:    Crash for "vim -u NONE -N  -c '&&'".
Solution:   Check for the pattern to be NULL. (Dominique Pelle)

src/ex_cmds.c

@@ -4425,7 +4425,7 @@ do_sub(eap)
      * TODO: find a generic solution to make line-joining operations more
      * efficient, avoid allocating a string that grows in size.
      */
-    if (STRCMP(pat, "\\n") == 0 && STRLEN(pat) == 2
+    if (pat != NULL && STRCMP(pat, "\\n") == 0
 	    && *sub == NUL
 	    && (*cmd == NUL || (cmd[1] == NUL && (*cmd == 'g' || *cmd == 'l'
 					     || *cmd == 'p' || *cmd == '#'))))

src/version.c

@@ -734,6 +734,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    245,
 /**/
     244,
 /**/