Update erlang-rebar to version 2.6.4+git20180201.b6d3094 / rev 11 via SR 1149099
https://build.opensuse.org/request/show/1149099
by user jubalh + anag+factory
- Use %autosetup macro. Allows to eliminate the usage of deprecated
%patchN.
- Use %autosetup macro. Allows to eliminate the usage of deprecated
%patchN.