Stray quote.

Author: jglick

Jenkinsfile

@@ -12,7 +12,7 @@ pipeline {
                     sh '''
                         docker version
                         docker system prune --all --force
-                        DOCKER_BUILDKIT=1 docker build --progress plain --no-cache .'
+                        DOCKER_BUILDKIT=1 docker build --progress plain --no-cache .
                     '''
                 }
             }