wrong command suggestion on precompile error

[Ken-B]

When loading SpecialFunctions failed, it should suggest to re-run Pkg.build("SpecialFunctions") instead of re-run Pkg.build("fvheQ") (the latter command does not work).

At https://github.com/JuliaLang/Pkg.jl/issues/1290 it was suggested this might be an issue of BinaryProvider.jl.

julia> using Distributions
[ Info: Precompiling Distributions [31c24e10-a181-5473-b8eb-7969acd0382f]
ERROR: LoadError: InitError: /Users/ken/.julia/packages/SpecialFunctions/fvheQ/deps/usr/lib/libopenspecfun.1.3.dylib cannot be opened, Please re-run Pkg.build("fvheQ"), and restart Julia.