Bug#859710: lhapdf FTBFS due to Build-Conflicts: automake

[Adrian Bunk]

Source: lhapdf
Version: 5.9.1-4
Severity: serious

Build-Depends: dh-autoreconf, automake1.11
Build-Conflicts: automake

After #857556 got fixed this doesn't work anymore,
the build dependencies cannot be fulfilled.

Please replace the Build-Conflicts: automake with the
following in debian/rules:
  export AUTOMAKE = automake-1.11
  export ACLOCAL = aclocal-1.11