dashboard/app: fix up pprof handlers access · google/syzkaller@12eec69

run: /usr/local/google-cloud-sdk/platform/google_appengine/lib/cherrypy/cherrypy/lib/httputil.py#L30

SyntaxWarning: invalid escape sequence '\*'

run: /usr/local/google-cloud-sdk/platform/google_appengine/lib/webapp2/webapp2/__init__.py#L908

SyntaxWarning: invalid escape sequence '\d'

run: /usr/local/google-cloud-sdk/platform/google_appengine/lib/webapp2/webapp2/__init__.py#L908

SyntaxWarning: invalid escape sequence '\d'

run: /usr/local/google-cloud-sdk/platform/google_appengine/lib/webapp2/webapp2/__init__.py#L908

SyntaxWarning: invalid escape sequence '\d'

run: /usr/local/google-cloud-sdk/platform/google_appengine/google/appengine/_internal/antlr3/recognizers.py#L555

SyntaxWarning: invalid escape sequence '\<'

run: /usr/local/google-cloud-sdk/platform/google_appengine/google/appengine/_internal/antlr3/recognizers.py#L555

SyntaxWarning: invalid escape sequence '\<'

run: /usr/local/google-cloud-sdk/platform/google_appengine/google/appengine/_internal/antlr3/recognizers.py#L555

SyntaxWarning: invalid escape sequence '\<'

run: /usr/local/google-cloud-sdk/platform/google_appengine/google/appengine/api/datastore.py#L1307

SyntaxWarning: invalid escape sequence '\s'

run: /usr/local/google-cloud-sdk/platform/google_appengine/google/appengine/api/datastore.py#L1307

SyntaxWarning: invalid escape sequence '\s'

run: /usr/local/google-cloud-sdk/platform/google_appengine/google/appengine/api/datastore.py#L1307

SyntaxWarning: invalid escape sequence '\s'

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