Merge pull request ceph#65893 from thuvh/doc-m1-getopt

docs: add package on macos to run ceph-backport.sh

Author: anthonyeleven

doc/dev/macos.rst

@@ -7,7 +7,7 @@ Since we've switched to C++ 17, and the default clang shipped with Xcode 9 does
 
 and install all the necessary bits::
 
-  brew install snappy ccache cmake pkg-config
+  brew install snappy ccache cmake pkg-config bash gnu-getopt
   pip install cython
 
 install FUSE if you want to build the FUSE support::