subcommand: Declare $opt as local.

Without the local keyword, gsu_cword_is_option_parameter() might
overwrite a variable of the caller.

diff --git a/subcommand b/subcommand
index c04f23f..7318c9e 100644 (file)
--- a/subcommand
+++ b/subcommand
@@ -493,7 +493,8 @@ EOF
 #
 gsu_cword_is_option_parameter()
 {
-       local opts="$1" cword="$2" prev i n
+       local opts="$1" cword="$2"
+       local opt prev i n
        local -a words
 
        result=