add "=" between --kokkos-tools-args and argument

[cwpearson]

A user at LANL tried --kokkos-tools-args 10 and received an error during Kokkos::initialize(). They needed to do --kokkos-tools-args=10

[dalg24]

Out of curiosity what error did we print? (Wondering if that needs improvement too)

[cwpearson]

I'm pretty sure it was this case:

https://github.com/kokkos/kokkos/blob/8e682582fd8302008ce5e422377e4ef2d730c23b/core/src/impl/Kokkos_Profiling.cpp#L127-L129

it was confusing because it just said

Warning: command line argument --kokkos-tools-args is not recognized

[dalg24]

I'm pretty sure it was this case:

https://github.com/kokkos/kokkos/blob/8e682582fd8302008ce5e422377e4ef2d730c23b/core/src/impl/Kokkos_Profiling.cpp#L127-L129

it was confusing because it just said

Warning: command line argument --kokkos-tools-args is not recognized

No way. We explicitly guard with
https://github.com/kokkos/kokkos/blob/8e682582fd8302008ce5e422377e4ef2d730c23b/core/src/impl/Kokkos_Profiling.cpp#L125-L126
I spoke too fast. OK we can definitely do better than that...