Some assorted fixes found in the "Issues" and "Pull requests" sections of the rdesktop github site:
- add patch fix_C99_issue_in_configure.patch to fix detection of statvfs64
- add patch fix_dashes_in_manpage.patch to prevent dashes from being utf8 mangled
- add patch fix_segfault_in_utils_cert_handle_exception.patch
- add patch fix_wrong_string_null_terminated.patch to null-terminate
the correct variable
- adjust patch rdesktop-fix_pkgconfig_check.patch so it can be applied with "-p1"
- minor spec cleanup
OBS-URL: https://build.opensuse.org/request/show/1138147
OBS-URL: https://build.opensuse.org/package/show/X11:Utilities/rdesktop?expand=0&rev=53
