configure: do not produce the word "warning" twice

Signed-off-by: ng0 <ng0@n0.is>

diff --git a/configure.ac b/configure.ac
index b847b53d3f5ac5ecd072de5294c10265de6412a8..dc81600dffad490663b2fa837e397b7d3331f8cb 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -244,7 +244,7 @@ if test x"$VAR_IFCONFIG_BINARY" != x"false"
 then
 AC_DEFINE_UNQUOTED([IFCONFIG], "$VAR_IFCONFIG_BINARY", [Path to ifconfig])
 else
-AC_MSG_WARN([warning: 'ifconfig' not found.])
+AC_MSG_WARN(['ifconfig' not found.])
 fi
 
 # miniupnpc / upnpc binary is a soft runtime requirement