Fix typos. Thanks to John Tytgat for noticing it!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90728 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/configure b/configure
index 4ef693f..3e0ca0a 100755
--- a/configure
+++ b/configure
@@ -5286,9 +5286,9 @@
 esac
 
 
-# Check whether --with-c-include-dir was given.
-if test "${with_c_include_dir+set}" = set; then
-  withval=$with_c_include_dir;
+# Check whether --with-c-include-dirs was given.
+if test "${with_c_include_dirs+set}" = set; then
+  withval=$with_c_include_dirs;
 else
   withval=""
 fi