LINT.md: Update super-linter version and escape find command

Change-Id: Id8b1d950fe1a431378fb3d3f56f15b2d69d936a2
Signed-off-by: Joakim Roubert <[email protected]>

.github/super-linter.env

@@ -1,3 +1,4 @@
+DEFAULT_BRANCH=main
 LINTER_RULES_PATH=/
 VALIDATE_ALL_CODEBASE=true
 IGNORE_GITIGNORED_FILES=true

LINT.md

@@ -22,7 +22,7 @@ docker run --rm \
   -v "$PWD":/tmp/lint \
   -e RUN_LOCAL=true \
   --env-file .github/super-linter.env \
-  ghcr.io/super-linter/super-linter:slim-v5
+  ghcr.io/super-linter/super-linter:slim-v6
 ```
 
 ## Run super-linter interactively
@@ -36,7 +36,7 @@ docker run -it --rm \
   -w /tmp/lint \
   --env-file .github/super-linter.env \
   --entrypoint /bin/bash \
-  ghcr.io/super-linter/super-linter:slim-v5
+  ghcr.io/super-linter/super-linter:slim-v6
 ```
 
 Then from the container terminal, the following commands can lint the the code
@@ -47,10 +47,10 @@ base for different file types:
 find "$PWD" \( -iname \*.c -or -iname \*.h \) -exec clang-format --dry-run --Werror --verbose {} +
 
 # Lint Dockerfile files
-hadolint $(find -type f -name Dockerfile*)
+hadolint $(find -type f -name Dockerfile\*)
 
 # Lint Dockerfile files (alternative command)
-find -type f -name Dockerfile* -exec hadolint {} +
+find -type f -name Dockerfile\* -exec hadolint {} +
 
 # Lint JSON files
 eslint --no-eslintrc -c /action/lib/.automation/.eslintrc.yml --ext .json .