Issue #3323864: Fix the programming errors

deployments/docker/Dockerfile

@@ -5,7 +5,6 @@ RUN set -eux; \
   if command -v a2enmod; then \
     a2enmod rewrite; \
   fi; \
-
   savedAptMark="$(apt-mark showmanual)"
 
 RUN set -eux; \
@@ -29,24 +28,24 @@ RUN set -eux; \
   git clone https://github.com/krakjoe/apcu /usr/src/php/ext/apcu \
     && cd /usr/src/php/ext/apcu \
     && docker-php-ext-install apcu > /dev/null 2>&1; \
-
+  \
   # Install OpCache.
   docker-php-ext-install -j "$(nproc)" opcache > /dev/null 2>&1; \
-
+  \
   # Install uploadprogress.
   pecl install uploadprogress > /dev/null 2>&1 \
     && docker-php-ext-enable uploadprogress > /dev/null 2>&1; \
-
+  \
   # Install Memcached.
   git clone https://github.com/php-memcached-dev/php-memcached /usr/src/php/ext/memcached \
     && cd /usr/src/php/ext/memcached \
     && docker-php-ext-install memcached > /dev/null 2>&1; \
-
+  \
   # Install graphic libraries and etc.
   docker-php-ext-configure gd \
     --with-freetype \
     --with-jpeg > /dev/null 2>&1; \
-
+  \
   docker-php-ext-install -j "$(nproc)" \
     gd \
     pdo_mysql \