Show filename on exec failure.

src/backend/postmaster/postmaster.c

@@ -10,7 +10,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.82 1998/06/08 19:15:05 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/postmaster/postmaster.c,v 1.83 1998/06/08 19:36:40 momjian Exp $
  *
  * NOTES
  *
@@ -316,7 +316,7 @@ PostmasterMain(int argc, char *argv[])
 			new_argv[i] = "";
 		new_argv[4] = NULL;
 		execv(new_argv[0], new_argv);
-		perror("");
+		perror(new_argv[0]);
 		/* How did we get here, error! */
 		fprintf(stderr, "PostmasterMain execv failed on %s\n", argv[0]);
 		exit(1);