Add commas to the new entries in the deterministic_build_whitelist

TBR=xidachen@chromium.org

Bug: 1047205
Change-Id: I67dac7a120396be9f1b260e1226cc202b9730d4c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2033444Reviewed-by: Xida Chen <xidachen@chromium.org>
Reviewed-by: Ioana Pandele <ioanap@chromium.org>
Commit-Queue: Ioana Pandele <ioanap@chromium.org>
Cr-Commit-Position: refs/heads/master@{#737373}

tools/determinism/deterministic_build_whitelist.pyl

@@ -23,10 +23,10 @@
 
   'linux': [
     # https://crbug.com/1047205
-    'nacl_test_data/extension_vcache_test/glibc/extension_validation_cache_libs/lib64/libppapi_cpp_lib.so'
-    'nacl_test_data/glibc/pm_exit_status_test_libs/lib64/libppapi_cpp_lib.so'
-    'nacl_test_data/glibc/simple_libs/lib64/libppapi_cpp_lib.so'
-    'nacl_test_data/glibc/sysconf_nprocessors_onln_test_libs/lib64/libppapi_cpp_lib.so'
+    'nacl_test_data/extension_vcache_test/glibc/extension_validation_cache_libs/lib64/libppapi_cpp_lib.so',
+    'nacl_test_data/glibc/pm_exit_status_test_libs/lib64/libppapi_cpp_lib.so',
+    'nacl_test_data/glibc/simple_libs/lib64/libppapi_cpp_lib.so',
+    'nacl_test_data/glibc/sysconf_nprocessors_onln_test_libs/lib64/libppapi_cpp_lib.so',
   ],
 
   'linux_component': [