Fix Lint errors

Author: fabasoad

Dockerfile

@@ -1,7 +1,4 @@
-FROM alpine:3.11.3
-
-RUN apk update ;\
-    apk add fp-compiler
+FROM cmplopes/alpine-freepascal:3.0.4
 
 COPY docker-entrypoint.sh /
 RUN chmod +x /docker-entrypoint.sh

docker-entrypoint.sh

@@ -1,3 +1,3 @@
 #!/bin/sh -l
-result=$(fpc $1)
+result=$(fpc "$1")
 echo ::set-output name=result::"$result"