Expand abbreviation to minimise confusion (#10826)

Dockerfile

@@ -86,7 +86,7 @@ RUN apt update && \
 	useradd -m -u $UID -g $GID -d /opt/mastodon mastodon && \
 	echo "mastodon:`head /dev/urandom | tr -dc A-Za-z0-9 | head -c 24 | mkpasswd -s -m sha-256`" | chpasswd
 
-# Install masto runtime deps
+# Install mastodon runtime deps
 RUN apt -y --no-install-recommends install \
 	  libssl1.1 libpq5 imagemagick ffmpeg \
 	  libicu60 libprotobuf10 libidn11 libyaml-0-2 \
@@ -104,11 +104,11 @@ ADD https://github.com/krallin/tini/releases/download/v${TINI_VERSION}/tini /tin
 RUN echo "$TINI_SUM tini" | sha256sum -c -
 RUN chmod +x /tini
 
-# Copy over masto source, and dependencies from building, and set permissions
+# Copy over mastodon source, and dependencies from building, and set permissions
 COPY --chown=mastodon:mastodon . /opt/mastodon
 COPY --from=build-dep --chown=mastodon:mastodon /opt/mastodon /opt/mastodon
 
-# Run masto services in prod mode
+# Run mastodon services in prod mode
 ENV RAILS_ENV="production"
 ENV NODE_ENV="production"