Improve documentation two functions

Namely `cmd_process_input()` and `files_get_data_path()`.

Edited by @jubalh.

src/command/cmd_funcs.c

@@ -188,6 +188,13 @@ _string_matches_one_of(const char* what, const char* is, bool is_can_be_null, co
     return ret;
 }
 
+/**
+ * @brief Processes a line of input and determines if profanity should continue.
+ *
+ * @param window
+ * @param inp The input string to process.
+ * @return Returns TRUE if profanity is to continue, FALSE otherwise.
+ */
 gboolean
 cmd_process_input(ProfWin* window, char* inp)
 {

src/config/files.c

@@ -155,11 +155,20 @@ files_get_config_path(const char* const config_base)
     return result;
 }
 
+/**
+ * Get the full path by appending the given location to the project base path.
+ *
+ * @param location The location (directory or file) to append to the project base path.
+ * @return The full path obtained by appending the location to the project base path.
+ *
+ * @note The returned value must be freed using g_free when it is no longer needed
+ *       to prevent memory leaks.
+ */
 gchar*
-files_get_data_path(const char* const data_base)
+files_get_data_path(const char* const location)
 {
     auto_gchar gchar* xdg_data = _files_get_xdg_data_home();
-    gchar* result = g_strdup_printf("%s/profanity/%s", xdg_data, date_base);
+    gchar* result = g_strdup_printf("%s/profanity/%s", xdg_data, location);
     return result;
 }