Using proper name for the gtar

Signed-off-by: Abhijit Gadgil <agadgil@progress.com>

Author: agadgil-progress

.expeditor/scripts/shared.sh

@@ -576,7 +576,7 @@ install_acceptance_bootstrap_hab_binary() {
     need_cmd install
 
     # Install the macOS bootstrap package that gives us GNU tar and GNU tail.
-    HOMEBREW_NO_AUTO_UPDATE=1 HOMEBREW_NO_ENV_HINTS=1 sudo -u anka brew install gtar
+    HOMEBREW_NO_AUTO_UPDATE=1 HOMEBREW_NO_ENV_HINTS=1 sudo -u anka brew install gnu-tar
     HOMEBREW_NO_AUTO_UPDATE=1 HOMEBREW_NO_ENV_HINTS=1 brew sudo -u anka install coreutils
 
     need_cmd gtar