Revert 2e45df3b. Because there are FP.
runastyle: Move astyle binary name into a variable

So it's easy to adjust the path to the exact
used astyle version of cppcheck.
runastyle: Output detected version on mismatch
astyle formatting
Fixed #6344 (false positive: out of bounds access when array size is unknown)
Fix compilation with GCC 4.4.

It was broken by fe468ac14255f079cd4ad0546d3c51f8e3f8031a.
Merge pull request #490 from lanurmi/nullptr-gcc44

Fix compilation with GCC 4.4.
Merge branch 'master' into travis_gcc_testsuite