Use `-g` in new plugin definition syntax

When tmux options are used without `-g` tmux complains on startup.

CHANGELOG.md

@@ -5,6 +5,7 @@
 - start using `C-c` to clear screen
 - add uninstall/clean procedure and keybinding (prefix+alt+u) (@chilicuil)
 - add new `set @plugin 'repo'` plugin defintion syntax (@chilicuil)
+- revert back to using `-g` flag in new plugin definition syntax
 
 ### v1.2.2, 2015-02-08
 - set GIT_TERMINAL_PROMPT=0 when doing `git clone`, `pull` or `submodule update`

scripts/shared_functions.sh

@@ -17,7 +17,7 @@ shared_get_tpm_plugins_list() {
 	if [ -z "${plugins_list}" ]; then
 		#read set @plugin "tmux-plugins/tmux-example-plugin" entries
 		cat /etc/tmux.conf ~/.tmux.conf 2>/dev/null |
-			awk '/^set +@plugin/ { gsub(/'\''/,""); gsub(/'\"'/,""); print $3 }'
+			awk '/^set +-g +@plugin/ { gsub(/'\''/,""); gsub(/'\"'/,""); print $4 }'
 	else
 		printf "%s\\n" "${plugins_list}"
 	fi

tests/test_plugin_installation.sh

@@ -6,7 +6,7 @@ source $CURRENT_DIR/helpers.sh
 
 test_plugin_installation() {
 	set_tmux_conf_helper <<- HERE
-	set @plugin "tmux-plugins/tmux-example-plugin"
+	set -g @plugin "tmux-plugins/tmux-example-plugin"
 	run-shell "$PWD/tpm"
 	HERE
 
@@ -23,8 +23,8 @@ test_plugin_installation() {
 
 test_multiple_plugins_installation() {
 	set_tmux_conf_helper <<- HERE
-	set @plugin "tmux-plugins/tmux-example-plugin"
-	set   @plugin 'tmux-plugins/tmux-copycat'
+	set -g @plugin "tmux-plugins/tmux-example-plugin"
+	set  -g    @plugin 'tmux-plugins/tmux-copycat'
 	run-shell "$PWD/tpm"
 	HERE