shithub: rgbds

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Fix error output slightly broken on Windows

Apparently, `perror` on Windows forces a newline before itself, which is
not the behavior intended. Instead, print the error message inline.

--- a/src/extern/err.c

+++ b/src/extern/err.c

@@ -6,9 +6,11 @@

  * SPDX-License-Identifier: MIT

  */

+#include <errno.h>

 #include <stdarg.h>

 #include <stdio.h>

 #include <stdlib.h>

+#include <string.h>

 #include "extern/err.h"

@@ -39,7 +41,8 @@

 		vfprintf(stderr, fmt, ap);

 		fputs(": ", stderr);

 	}

-	perror(NULL);

+	fputs(strerror(errno), stderr);

+	putc('\n', stderr);

 	exit(status);

 }