Don't put a colon in the extra error message.

Since the printed format for errors uses colons to separate different
parts of the error message, this was confusing.

Change-Id: I4742becec2bcb56ad8dc2fdb9a3bb23e4452d1b2
Reviewed-on: https://boringssl-review.googlesource.com/12361
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Commit-Queue: Adam Langley <alangley@gmail.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
diff --git a/ssl/t1_lib.c b/ssl/t1_lib.c
index bc39440..3679f8d 100644
--- a/ssl/t1_lib.c
+++ b/ssl/t1_lib.c
@@ -2651,7 +2651,7 @@
     const size_t len_before = CBB_len(&extensions);
     if (!kExtensions[i].add_clienthello(ssl, &extensions)) {
       OPENSSL_PUT_ERROR(SSL, SSL_R_ERROR_ADDING_EXTENSION);
-      ERR_add_error_dataf("extension: %u", (unsigned)kExtensions[i].value);
+      ERR_add_error_dataf("extension %u", (unsigned)kExtensions[i].value);
       goto err;
     }
 
@@ -2744,7 +2744,7 @@
 
     if (!kExtensions[i].add_serverhello(ssl, &extensions)) {
       OPENSSL_PUT_ERROR(SSL, SSL_R_ERROR_ADDING_EXTENSION);
-      ERR_add_error_dataf("extension: %u", (unsigned)kExtensions[i].value);
+      ERR_add_error_dataf("extension %u", (unsigned)kExtensions[i].value);
       goto err;
     }
   }
@@ -2814,7 +2814,7 @@
     if (!ext->parse_clienthello(ssl, &alert, &extension)) {
       *out_alert = alert;
       OPENSSL_PUT_ERROR(SSL, SSL_R_ERROR_PARSING_EXTENSION);
-      ERR_add_error_dataf("extension: %u", (unsigned)type);
+      ERR_add_error_dataf("extension %u", (unsigned)type);
       return 0;
     }
   }
@@ -2842,7 +2842,7 @@
     uint8_t alert = SSL_AD_DECODE_ERROR;
     if (!kExtensions[i].parse_clienthello(ssl, &alert, contents)) {
       OPENSSL_PUT_ERROR(SSL, SSL_R_MISSING_EXTENSION);
-      ERR_add_error_dataf("extension: %u", (unsigned)kExtensions[i].value);
+      ERR_add_error_dataf("extension %u", (unsigned)kExtensions[i].value);
       *out_alert = alert;
       return 0;
     }
@@ -2921,7 +2921,7 @@
     uint8_t alert = SSL_AD_DECODE_ERROR;
     if (!ext->parse_serverhello(ssl, &alert, &extension)) {
       OPENSSL_PUT_ERROR(SSL, SSL_R_ERROR_PARSING_EXTENSION);
-      ERR_add_error_dataf("extension: %u", (unsigned)type);
+      ERR_add_error_dataf("extension %u", (unsigned)type);
       *out_alert = alert;
       return 0;
     }
@@ -2934,7 +2934,7 @@
       uint8_t alert = SSL_AD_DECODE_ERROR;
       if (!kExtensions[i].parse_serverhello(ssl, &alert, NULL)) {
         OPENSSL_PUT_ERROR(SSL, SSL_R_MISSING_EXTENSION);
-        ERR_add_error_dataf("extension: %u", (unsigned)kExtensions[i].value);
+        ERR_add_error_dataf("extension %u", (unsigned)kExtensions[i].value);
         *out_alert = alert;
         return 0;
       }