replaces four spaces by tabs, where appropriate

src/libstrongswan/plugins/curl/curl_fetcher.c

@@ -40,7 +40,7 @@ struct private_curl_fetcher_t {
 	CURL* curl;
 
 	/**
-     * Optional HTTP headers
+	 * Optional HTTP headers
 	 */
 	struct curl_slist *headers;
 };

src/libstrongswan/plugins/curl/curl_fetcher.h

@@ -34,9 +34,9 @@ struct curl_fetcher_t {
 	fetcher_t interface;
 
 	/**
-     * Destroy a curl_fetcher instance.
-     */
-    void (*destroy)(curl_fetcher_t *this);
+	 * Destroy a curl_fetcher instance.
+	 */
+	void (*destroy)(curl_fetcher_t *this);
 };
 
 /**

src/libstrongswan/plugins/curl/curl_plugin.c

@@ -66,12 +66,12 @@ plugin_t *plugin_create()
 						(fetcher_constructor_t)curl_fetcher_create, "https://");
 		lib->fetcher->add_fetcher(lib->fetcher,
 						(fetcher_constructor_t)curl_fetcher_create, "ftp://");
-    }
-    else
-    {
-    	DBG1("global libcurl initializing failed: %s, curl disabled",
+	}
+	else
+	{
+		DBG1("global libcurl initializing failed: %s, curl disabled",
 			 curl_easy_strerror(res));
-    }
+	}
 	return &this->public.plugin;
 }