using exact shellcheck location now for correct version (not using Travis')

using

.travis.yml

@@ -22,7 +22,6 @@ services:
 before_install:
   - sudo curl -L https://github.com/hadolint/hadolint/releases/download/v$HADOLINT_VERSION/hadolint-$(uname -s)-$(uname -m) -o /usr/local/bin/hadolint
   - sudo chmod +rx /usr/local/bin/hadolint
-  - sudo apt-get -y remove shellcheck
   - sudo wget -qO- "https://github.com/koalaman/shellcheck/releases/download/v${SHELLCHECK_VERSION}/shellcheck-v${SHELLCHECK_VERSION}.linux.x86_64.tar.xz" | tar -xJv
   - sudo cp "shellcheck-v${SHELLCHECK_VERSION}/shellcheck" /usr/bin/
 

Makefile

@@ -165,10 +165,10 @@ clean:
 
 shellcheck:
 	@ echo -e "Testing shell / bash scripts with shellcheck\n"
-	@ shellcheck --version
+	@ /usr/bin/shellcheck --version
 	@ echo ''
 # currently without `start-mailserver` as this is to be merged separately
-	@ if find -iname "*.sh" -not -path "./test/*" -not -path "./target/docker-configomat/*" -not -wholename ./target/start-mailserver.sh -exec shellcheck -S style -Cauto -o all -e SC2250,SC2154 -W 50 {} \; | grep .; then\
+	@ if find -iname "*.sh" -not -path "./test/*" -not -path "./target/docker-configomat/*" -not -wholename ./target/start-mailserver.sh -exec /usr/bin/shellcheck -S style -Cauto -o all -e SC2250,SC2154 -W 50 {} \; | grep .; then\
 		echo -e "\nError" ;\
 		exit 1 ;\
 	else\