Update periodic testing scripts

src/button/button.c

@@ -79,7 +79,7 @@ void destroy_button(void *obj)
 
         if (button->backend->instances) {
             fprintf(stderr, "tint2: Error: Attempt to destroy backend while there are still frontend instances!\n");
-            exit(-1);
+            exit(EXIT_FAILURE);
         }
         free(button->backend);
         free(button);

src/execplugin/execplugin.c

@@ -109,7 +109,7 @@ void destroy_execp(void *obj)
 
         if (execp->backend->instances) {
             fprintf(stderr, "tint2: Error: Attempt to destroy backend while there are still frontend instances!\n");
-            exit(-1);
+            exit(EXIT_FAILURE);
         }
         free(execp->backend);
         free(execp);

src/init.c

@@ -75,7 +75,7 @@ void handle_cli_arguments(int argc, char **argv)
         }
         if (error) {
             print_usage();
-            exit(1);
+            exit(EXIT_FAILURE);
         }
     }
 }
@@ -184,7 +184,7 @@ void init_X11_pre_config()
     server.display = XOpenDisplay(NULL);
     if (!server.display) {
         fprintf(stderr, "tint2: could not open display!\n");
-        exit(1);
+        exit(EXIT_FAILURE);
     }
     server.x11_fd = ConnectionNumber(server.display);
     XSetErrorHandler((XErrorHandler)server_catch_error);

src/util/common.c

@@ -808,7 +808,7 @@ Imlib_Image load_image(const char *path, int cached)
                     GdkPixbuf *pixbuf = rsvg_handle_get_pixbuf(svg);
                     gdk_pixbuf_save(pixbuf, tmp_filename, "png", NULL, NULL);
                 }
-                exit(0);
+                _exit(0);
             } else {
                 // Parent
                 close(fd);

test/regression.py

@@ -160,7 +160,7 @@ def test(tint2path, config, use_asan):
   start_wm()
   sleep(1)
   os.environ["DEBUG_FPS"] = "1"
-  os.environ["ASAN_OPTIONS"] = "detect_leaks=1"
+  os.environ["ASAN_OPTIONS"] = "detect_leaks=1:exitcode=0"
   tint2 = run([tint2path, "-c", config], True)
   if tint2.poll() != None:
     raise RuntimeError("tint2 failed to start")