Fix identation issue

sway/commands.c

@@ -2152,9 +2152,9 @@ static struct cmd_results *cmd_set(int argc, char **argv) {
 		return error;
 	}
 
-    if (argv[0][0] != '$') {
+	if (argv[0][0] != '$') {
-        return cmd_results_new(CMD_FAILURE, "set", "Malformed variable assignment, name has to start with $");
+		return cmd_results_new(CMD_FAILURE, "set", "Malformed variable assignment, name has to start with $");
-    }
+	}
 
 	struct sway_variable *var = NULL;
 	// Find old variable if it exists