patch 7.4.989

Problem:    Leaking memory when hash_add() fails. Coverity error 99126.
Solution:   When hash_add() fails free the memory.

Author: brammool

src/eval.c

@@ -23095,7 +23095,11 @@ ex_function(eap)
 
 	/* insert the new function in the function list */
 	STRCPY(fp->uf_name, name);
-	hash_add(&func_hashtab, UF2HIKEY(fp));
+	if (hash_add(&func_hashtab, UF2HIKEY(fp)) == FAIL)
+	{
+	    vim_free(fp);
+	    goto erret;
+	}
     }
     fp->uf_args = newargs;
     fp->uf_lines = newlines;

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    989,
 /**/
     988,
 /**/