More miscellaneous bools.

Change-Id: I0960fed68ef39e4523ef9f2ba89ffa92f09c4dce
Reviewed-on: https://boringssl-review.googlesource.com/19945
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
diff --git a/ssl/tls13_server.cc b/ssl/tls13_server.cc
index a46d0c8..65c2f11 100644
--- a/ssl/tls13_server.cc
+++ b/ssl/tls13_server.cc
@@ -73,7 +73,7 @@
     return 0;
   }
 
-  int found_key_share;
+  bool found_key_share;
   uint8_t *dhe_secret;
   size_t dhe_secret_len;
   uint8_t alert = SSL_AD_DECODE_ERROR;