check_packages2install - update docs

check_packages2install-pkgmanager/pamac.sh

@@ -19,6 +19,7 @@ function pamacGetUpdates(){
 
 # ---------------------------------------------------------------
 # extract list of packages 2 install
+# global  string  packagemanOut  output of update lister command
 function pamacPackages(){
      echo "$packagemanOut" | grep -- '->'
 }