code fix

Author: anandamideShakyan

scripts/setup-centos9.sh

@@ -72,8 +72,8 @@ function install_velox_deps_from_dnf {
     libdwarf-devel elfutils-libelf-devel curl-devel libicu-devel bison flex \
     libsodium-devel zlib-devel gtest-devel gmock-devel gflags-devel
 
-    # install sphinx for doc gen
-      pip install sphinx sphinx-tabs breathe sphinx_rtd_theme
+  # install sphinx for doc gen
+  pip install sphinx sphinx-tabs breathe sphinx_rtd_theme
 }
 
 function install_conda {
@@ -123,6 +123,7 @@ function install_adapters {
 function install_velox_deps {
   run_and_time install_velox_deps_from_dnf
   run_and_time install_conda
+  run_and_time install_gflags
   run_and_time install_glog
   run_and_time install_lzo
   run_and_time install_snappy