net/glusterfs: Update to 3.11.1

• Regenerate patches

While here:

• Fix Q/A errors (shebangfix)
• Update WWW
• Use OPSYS with OSVERSION

PR: 220674
Submitted by: craig001@lerwick.hopto.org (maintainer)
Reviewed by: mat
Differential Revision: https://reviews.freebsd.org/D11550