testsuite: Skip T17414 on Linux
testsuite: Skip T17414 on Linux

It is typical for $TMP to be a small tmpfson Linux. This test will fail
in such cases since we must create a file larger than the filesystem.
See #17459.

sdiehl/ghc,sdiehl/ghc,sdiehl/ghc,sdiehl/ghc,sdiehl/ghc,sdiehl/ghc,sdiehl/ghc