Make flag in union sudo_defs_val bool to match how it is used.

Adjust find_path()'s ignore_dot function argument to match.

plugins/sudoers/editor.c

@@ -148,7 +148,7 @@ resolve_editor(const char *ed, size_t edlen, int nfiles, char * const *files,
 
     /* If we can't find the editor in the user's PATH, give up. */
     if (find_path(editor, &editor_path, &user_editor_sb, getenv("PATH"),
-	    0, allowlist) != FOUND) {
+	    false, allowlist) != FOUND) {
 	errno = ENOENT;
 	goto bad;
     }