Test for Linux only once.

contrib/wireless-tools

@@ -3,9 +3,10 @@
 #
 # bash completion for Linux wireless-tools
 
-# Linux iwconfig(8) completion
-#
-[ $UNAME = Linux ] && have iwconfig &&
+[ $UNAME = Linux ] &&
+{
+
+have iwconfig &&
 _iwconfig()
 {
 	local cur prev
@@ -109,9 +110,8 @@ _iwconfig()
 } &&
 complete -F _iwconfig iwconfig
 
-# Linux iwlist(8) completion
-#
-[ $UNAME = Linux ] && have iwlist &&
+
+have iwlist &&
 _iwlist()
 {
 	local cur prev
@@ -134,9 +134,8 @@ _iwlist()
 } &&
 complete -F _iwlist iwlist
 
-# Linux iwspy(8) completion
-#
-[ $UNAME = Linux ] && have iwspy &&
+
+have iwspy &&
 _iwspy()
 {
 	local cur
@@ -156,9 +155,8 @@ _iwspy()
 } &&
 complete -F _iwspy iwspy
 
-# Linux iwpriv(8) completion
-#
-[ $UNAME = Linux ] && have iwpriv &&
+
+have iwpriv &&
 _iwpriv()
 {
 	local cur prev
@@ -189,3 +187,5 @@ _iwpriv()
 	fi
 } &&
 complete -F _iwpriv iwpriv
+
+}