Add quotes in pnacl install step to avoid shell globing

ports/pnacl/build.sh

 # Copyright (c) 2013 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.
 
 EnableGlibcCompat
 EnableCliMain
 
 PatchStep() {
   DefaultPatchStep
   MakeDir ${SRC_DIR}/toolchain_build/src
@@ skipping 169 matching lines @@
   LogExecute rm -f toolchain/bin/mipsel-*
   LogExecute rm -f toolchain/lib/*.so
 }
 
 InstallStep() {
   local INSTALL_DIR=${DESTDIR}/${PREFIX}/pnacl
   Remove ${INSTALL_DIR}/
   MakeDir ${INSTALL_DIR}/
 
   LogExecute cp -r toolchain/* ${INSTALL_DIR}
-  for f in $(find ${INSTALL_DIR} -type l -name *-clang*${NACL_EXEEXT}); do
+  for f in $(find ${INSTALL_DIR} -type l -name "*-clang*${NACL_EXEEXT}"); do
     # link to clang binary
     Remove $f ${f%.*}
     LogExecute ln -s clang ${f%.*}
   done
-  for f in $(find ${INSTALL_DIR} -executable -type f -name *${NACL_EXEEXT}); do
+  for f in $(find ${INSTALL_DIR} -type f -name "*${NACL_EXEEXT}"); do
     LogExecute mv $f ${f%.*}
   done
 }
 
 TestStep() {
   # Verify that binaries at least load under sel_ldr
   LogExecute toolchain/bin/le32-nacl-strings --version
   LogExecute toolchain/bin/arm-nacl-readelf --version
   LogExecute toolchain/bin/x86_64-nacl-as --version
   LogExecute toolchain/bin/clang --version
@@ skipping 36 matching lines @@
   -L$PWD/toolchain/bin/../x86_64-nacl/usr/lib
   -L$PWD/toolchain/bin/../lib/clang/3.7.0/lib/x86_64-nacl
   ./hello.o --start-group -lc -lgcc --as-needed -lgcc_eh --no-as-needed
   --end-group
   $PWD/toolchain/bin/../lib/clang/3.7.0/lib/x86_64-nacl/crtend.o
   $PWD/toolchain/bin/../x86_64-nacl/lib/crtn.o
   "
   LogExecute $link_command
   RunSelLdrCommand hello.nexe
 }