XrdCl::DirListFlags::Locate should not be set when pss.origin's protocol is http(s)

[wyang007]

Line https://github.com/xrootd/xrootd/blob/master/src/XrdPss/XrdPssConfig.cc#L803 (or the last line of the following code)
if (!index(mval, '.')
|| !strcmp(XrdPssUtils::getDomain(mval), XrdPssUtils::getDomain(myHost)))
XrdPosixConfig::SetEnv("DirlistDflt", 1);

should not be called when the protocol (protName) is http or https. Calling it causes XrdPosixGlobals::dlFlag be set to XrdCl::DirListFlags::Locate, trigging a DeepLocate() later against an http(s) origin.

[wyang007]

fixed by commit 5550a77