Add quotes in pnacl install step to avoid shell globing

ports/pnacl/build.sh

Index: ports/pnacl/build.sh
diff --git a/ports/pnacl/build.sh b/ports/pnacl/build.sh
index 7cb17b95494bd9f7b349cc410ef2642ee2158722..829b344490d4a24ab0539cee9faa171302ff56b5 100644
--- a/ports/pnacl/build.sh
+++ b/ports/pnacl/build.sh
@@ -187,12 +187,12 @@ InstallStep() {
   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
 }