Update the Xcode version number in Kokoro (#7202) (#7203)
Currently all of our MacOS tests are failing with the error: "autom4te: need GNU m4 1.4 or later: /usr/bin/m4". This is likely to be happening because Kokoro has updated their Xcode version to 11.3.
diff --git a/kokoro/macos/prepare_build_macos_rc b/kokoro/macos/prepare_build_macos_rc
index acb2aba..2428750 100755
--- a/kokoro/macos/prepare_build_macos_rc
+++ b/kokoro/macos/prepare_build_macos_rc
@@ -5,11 +5,11 @@
##
# Select Xcode version
-# Remember to udpate the Xcode version when Xcode_11.0.app is not available.
-# If xcode is not available, it will probaly encounter the failure for
+# Remember to update the Xcode version when Xcode_11.3.app is not available.
+# If xcode is not available, it will probably encounter the failure for
# "autom4te: need GNU m4 1.4 or later: /usr/bin/m4"
# go/kokoro/userdocs/macos/selecting_xcode.md for more information.
-export DEVELOPER_DIR=/Applications/Xcode_11.0.app/Contents/Developer
+export DEVELOPER_DIR=/Applications/Xcode_11.3.app/Contents/Developer
##
# Select C/C++ compilers
