configure: Suppress "potentially uninitialized variable" warnings from MSVC

The same is done for GCC and clang already.

diff --git a/configure b/configure
index c073f30..db3ee36 100755 (executable)
--- a/configure
+++ b/configure
@@ -2688,7 +2688,7 @@ msvc_flags(){
             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
-                                       -wd4273 ;;
+                                       -wd4273 -wd4701 ;;
         esac
     done
 }