patch 9.1.0693: Configure doesn't show result when not using python3 stable abi

Problem:  Configure doesn't show result when not using python3 stable
          abi (after v9.1.0691)
Solution: Add back AC_MSG_RESULT() (Ken Takata)

related: #15555

Signed-off-by: Ken Takata <kentkt@csc.jp>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/auto/configure b/src/auto/configure
index 7059554..4a99071 100755
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -7099,6 +7099,9 @@
      fi
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $vi_cv_var_python3_stable_abi" >&5
 printf "%s\n" "$vi_cv_var_python3_stable_abi" >&6; }
+else $as_nop
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
+printf "%s\n" "no" >&6; }
 fi
 
       if test "X$vi_cv_var_python3_stable_abi" != "X"; then