configure: Fix typo in incdir variable written to config.sh

This fixes includedir lines in pkg-config files broken after 92db508307.

diff --git a/configure b/configure
index d8b59e2548ab4640d837a76b1eb31e4ffddf4f96..9cd4fe6b471c36b4de92ca8474c25a175fb63f83 100755 (executable)
--- a/configure
+++ b/configure
@@ -5414,7 +5414,7 @@ cat > avbuild/config.sh <<EOF
 shared=$shared
 prefix=$prefix
 libdir=$libdir
-includedir=$incdir
+incdir=$incdir
 source_path=${source_path}
 LIBPREF=${LIBPREF}
 LIBSUF=${LIBSUF}