Fixes CMake config file when OpenBLAS was not used

[orlandini]

A missing @ would prevent the correct substitution of the WITH_OPENBLAS value at configuration time. Therefore, the if condition would always be met by an external project (since the variable _SuiteSparse_WITH_OPENBLAS would have value @WITH_OPENBLAS).

[NeroBurner]

Thank you very much for fixing this issue!

[NeroBurner]

@jlblancoc should we release a 1.6.2 or because of #111 which adds a feature a 1.7.0? Any opinions?

[jlblancoc]

@orlandini good catch 👍 !

@NeroBurner :

should we release a 1.6.2 or because of #111 which adds a feature a 1.7.0? Any opinions?

I don't have a strong opinion in this case, but would slightly favor a new minor version bump (1.7.0). Thanks!

[NeroBurner]

Released: https://github.com/jlblancoc/suitesparse-metis-for-windows/releases/tag/v1.7.0