syslog: fix error with memmove after realloc

Signed-off-by: Christopher Degawa <[email protected]>

Author: 1480c1

compat/win32/syslog.c

@@ -50,6 +50,8 @@ void syslog(int priority, const char *fmt, ...)
 			warning_errno("realloc failed");
 			return;
 		}
+		if (pos != str + (pos - oldstr))
+			pos = strstr(str, "%1");
 		memmove(pos + 2, pos + 1, strlen(pos));
 		pos[1] = ' ';
 	}