science/simlib: Fix build

• Doesn't build with Clang 6

errors.cc:14:42: error: invalid suffix on literal; C++11 requires a space between

literal and identifier [-Wreserved-user-defined-literal]

/* 0 */ "SIMLIB/C++ Simulation Library, "SIMLIB_COPYRIGHT"\0"

^

http://beefy12.nyi.freebsd.org/data/head-amd64-default/p473790_s335878/logs/simlib-3.02_1.log

• nm crashes during the build on FreeBSD >= 11.1. Use binutils from ports as a workaround. [1]

Assertion failed: (ddata->output.size > 0), function cpp_demangle_read_sname, file /usr/src/contrib/elftoolchain/libelftc/libelftc_dem_gnu3.c, line 2137.

http://beefy9.nyi.freebsd.org/data/111amd64-default/473790/logs/simlib-3.02_1.log

PR: 223333 [1]