MINOR: [R][CI] Fix typo in docker configure script (#14374)

assignUser · web-flow · commit fa3cf78e3ff4 · 2022-10-11T14:49:47.000-04:00
Fix [typo](https://github.com/ursacomputing/crossbow/actions/runs/3225397138/jobs/5277936316) introduced in #14243 Authored-by: Jacob Wujciak-Jens <jacob@wujciak.de> Signed-off-by: Neal Richardson <neal.p.richardson@gmail.com>
diff --git a/ci/scripts/r_docker_configure.sh b/ci/scripts/r_docker_configure.sh
@@ -76,7 +76,7 @@ if [[ -n "$DEVTOOLSET_VERSION" ]]; then
   # Only add make var if not set
   if ! grep -Fq "CXX17=" ~/.R/Makevars &> /dev/null; then
     mkdir -p ~/.R
-    echo "CXX17=g++ -std=g++17 -g -O2 -fpic" >> ~/.R/Makevars 
+    echo "CXX17=g++ -std=gnu++17 -g -O2 -fpic" >> ~/.R/Makevars 
   fi
 fi
 
