ENH: small typo / newest Docker LABEL spec

Dockerfile

@@ -97,7 +97,7 @@ RUN git clone --single-branch -b $OTB https://gitlab.orfeo-toolbox.org/orfeotool
  && if $GUI; then \
       sed -i -r "s/-DOTB_USE_(QT|OPENGL|GL[UFE][WT])=OFF/-DOTB_USE_\1=ON/" ../build-flags-otb.txt; fi \
  # Possible ENH: superbuild-all-dependencies switch, with separated build-deps-minimal.txt and build-deps-otbcli.txt)
- #&& if $OTB_SUPERBUILD_ALL; then sed -i -r "s/-DOTB_USE_SYSTEM_([A-Z0-9]*)=ON/-DOTB_USE_SYSTEM_\1=OFF/"" ../build-flags-otb.txt; fi \
+ #&& if $OTB_SUPERBUILD_ALL; then sed -i -r "s/-DUSE_SYSTEM_([A-Z0-9]*)=ON/-DUSE_SYSTEM_\1=OFF/"" ../build-flags-otb.txt; fi \
  && OTB_FLAGS=$(cat "../build-flags-otb.txt") \
  && cmake ../otb/SuperBuild -DCMAKE_INSTALL_PREFIX=/opt/otbtf $OTB_FLAGS \
  && make -j $(python -c "import os; print(round( os.cpu_count() * $CPU_RATIO ))")
@@ -132,7 +132,7 @@ RUN for f in /src/otbtf/python/*.py; do if [ -x $f ]; then ln -s $f /opt/otbtf/b
 # ----------------------------------------------------------------------------
 # Final stage
 FROM otbtf-base
-MAINTAINER Remi Cresson <remi.cresson[at]inrae[dot]fr>
+LABEL maintainer="Remi Cresson <remi.cresson[at]inrae[dot]fr>"
 
 # Copy files from intermediate stage
 COPY --from=builder /opt/otbtf /opt/otbtf