Detect cards with indented properties

Changelog.org

@@ -5,6 +5,14 @@ upcoming changes.
 In case a update to the org sources is needed, I'll add a changelog
 entry with updating instructions.
 
+** 0.6.2
+
+*** Fixed
+
+When using =grep= to find files that contain flashcards, org-fc now
+also finds files where the property drawer or single properties are
+indented (preceded by spaces or tabs).
+
 ** 0.6.1
 
 *** Fixed

org-fc-awk.el

@@ -44,7 +44,7 @@ Matches all .org files ignoring ones with names don't start with
 a `.' to exclude temporary / backup files.
 With the `-L' option, `find' follows symlinks."
   (format
-   "find -L %s -name \".*\" -prune -o -name \"[^.]*.org\" -type f -exec grep -l --null \"^:%s:\" {} \\+"
+   "find -L %s -name \".*\" -prune -o -name \"[^.]*.org\" -type f -exec grep -l --null \"^[ \\t]*:%s:\" {} \\+"
    (mapconcat
     (lambda (path) (shell-quote-argument (expand-file-name path)))
     paths " ")