Fix broken example

bin/v-change-user-php-cli

@@ -3,7 +3,7 @@
 # options: USER VERSION
 # labels: hestia
 #
-# example: v-change-user-php-cli user php7.4
+# example: v-change-user-php-cli user 7.4
 #
 # add line to .bash_aliases to set default php command line
 # version when multi-php is enabled.