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<?php var_dump(md5(null)); var_dump(md5(''));
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: md5(): Passing null to parameter #1 ($string) of type string is deprecated in /in/hqZvn on line 3 string(32) "d41d8cd98f00b204e9800998ecf8427e" string(32) "d41d8cd98f00b204e9800998ecf8427e"

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