add space

Author: pehbehbeh

Dockerfile

@@ -4,7 +4,7 @@ ENV PHP_OPCACHE_VALIDATE_TIMESTAMPS="0" \
     PHP_OPCACHE_MAX_ACCELERATED_FILES="10000" \
     PHP_OPCACHE_MEMORY_CONSUMPTION="192" \
     PHP_OPCACHE_MAX_WASTED_PERCENTAGE="10" \
-    PHP_MEMORY_LIMIT="512M"\
+    PHP_MEMORY_LIMIT="512M" \
     PHP_MAX_EXECUTION_TIME="60"
 
 RUN apk info \