remove extraneous tmp vars in libre_redirect

TODO.md

@@ -1,5 +1,7 @@
 # To do
 
+- [ ] Settle on a C standard (C11?), and use safer string handling functions provided by it.
+  - See make lint for purported insecurities
 - [ ] Document creating new applications, e.g., as in [Asana for Linux](https://git.nunosempere.com/NunoSempere/asana-for-linux)
   - [ ] This time, use something other than Whatsapp as an example syslink.
 - [ ] Fix bug about distorted audio. Maybe related to [this pipewire issue](<https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/1547>)?

plugins/libre_redirect/libre_redirect.c

@@ -13,7 +13,6 @@ int libre_redirect(const char* uri, char* output)
 {
     int len_uri = strlen(uri);
     int len_output = strlen(output);
-    char tmp_uri[len_output++];
 
     if ((len_output - len_uri) < LIBRE_N) {
         printf("Not enough memory\n");
@@ -47,9 +46,8 @@ int libre_redirect(const char* uri, char* output)
 
         int len = sizeof(annoying_sites) / sizeof(annoying_sites[0]);
         for (int i = 0; i < len; i++) {
-            strcpy(tmp_uri, uri);
             str_init(output, len_output);
-            int replace_check = str_replace_start(tmp_uri, annoying_sites[i],
+            int replace_check = str_replace_start(uri, annoying_sites[i],
                 alternatives[i], output);
             switch(replace_check){
                 case 0: // no match found