Update bug URLs from naclports to webports

ports/gdb/build.sh

 # Copyright (c) 2012 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 EnableCliMain
 EnableGlibcCompat
 
 NACLPORTS_LIBS+=" -lncurses -lm"
 
 if [ "${NACL_LIBC}" = "newlib" ]; then
@@ skipping 104 matching lines @@
 
   # Zip for upload to the web store.
   pushd ${PUBLISH_DIR}
   rm -f debug_extension.zip
   zip -r debug_extension.zip debug_extension/
   popd
 }
 
 PostInstallTestStep() {
   # Temporartily disabled until this gets fixed:
-  # https://code.google.com/p/naclports/issues/detail?id=187
+  # https://bugs.chromium.org/p/webports/issues/detail?id=187
   return
   if [[ ${OS_NAME} == Darwin && ${NACL_ARCH} == x86_64 ]]; then
     echo "Skipping gdb/debug tests on unsupported mac + x86_64 configuration."
   elif [[ ${NACL_ARCH} == arm ]]; then
     echo "Skipping gdb/debug tests on arm for now."
   else
     LogExecute python ${START_DIR}/gdb_test.py -x -vv -a ${NACL_ARCH}
     LogExecute python ${START_DIR}/debugger_test.py -x -vv -a ${NACL_ARCH}
   fi
 }