Contrib: Make sure curl follow "Location:". (Fix Mac OS X Nightlies)

extras/contrib/bootstrap

@@ -230,7 +230,7 @@ echo "EXTRA_LDFLAGS = ${EXTRA_LDFLAGS}" >> config.mak
 echo "EXTRA_PATH = ${EXTRA_PATH}" >> config.mak
 
 if which curl >/dev/null; then
-	echo "WGET = curl -O" >> config.mak
+	echo "WGET = curl -L -O" >> config.mak
 elif wget --version >/dev/null 2>&1; then
 	echo "WGET = wget" >> config.mak
 else