tweaks: free some memory before a possible error exit [coverity]

src/text.c

@@ -2939,6 +2939,8 @@ void do_linter(void)
 		pointer++;
 	}
 
+	free(lintings);
+
 	/* Process the end of the linting process. */
 	waitpid(pid_lint, &lint_status, 0);
 
@@ -2947,8 +2949,6 @@ void do_linter(void)
 		return;
 	}
 
-	free(lintings);
-
 	if (parsesuccess == 0) {
 		statusline(HUSH, _("Got 0 parsable lines from command: %s"),
 						openfile->syntax->linter);