Fix find command quoting issues for multiple folders.

.github/workflows/push.yml

@@ -9,6 +9,15 @@ jobs:
       uses: ./
       with:
         check-modified-files-only: 'yes'
+  markdown-link-check-folders:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - name: markdown-link-check
+      uses: ./
+      with:
+        # Add a test to restrict the test to just dir4 and dir5.
+        folder-path: './md/dir4, ./md/dir5'
   shellcheck:
     runs-on: [ubuntu-latest]
     steps:

entrypoint.sh

@@ -182,9 +182,9 @@ if [ "$CHECK_MODIFIED_FILES" = "yes" ]; then
 else
 
    if [ "$5" -ne -1 ]; then
-      FIND_CALL=('find' "${FOLDERS}" '-name' '*'"${FILE_EXTENSION}" '-not' '-path' './node_modules/*' '-maxdepth' "${MAX_DEPTH}" '-exec' 'markdown-link-check' '{}')
+      FIND_CALL=('find' ${FOLDERS} '-name' '*'"${FILE_EXTENSION}" '-not' '-path' './node_modules/*' '-maxdepth' "${MAX_DEPTH}" '-exec' 'markdown-link-check' '{}')
    else
-      FIND_CALL=('find' "${FOLDERS}" '-name' '*'"${FILE_EXTENSION}" '-not' '-path' './node_modules/*' '-exec' 'markdown-link-check' '{}')
+      FIND_CALL=('find' ${FOLDERS} '-name' '*'"${FILE_EXTENSION}" '-not' '-path' './node_modules/*' '-exec' 'markdown-link-check' '{}')
    fi
 
    add_options

md/dir4/ok4.md

@@ -0,0 +1,6 @@
+# Ok4
+
+## Test
+
+Go to [Ok5](../dir5/ok5.md#test)
+

md/dir5/ok5.md

@@ -0,0 +1,6 @@
+# Ok5
+
+## Test
+
+Go to [Ok4](../dir4/ok4.md#test)
+