fix GPL src dir checker [skip ci] the check for the GPL directory having populated was inadequate...
fix GPL src dir checker [skip ci]
the check for the GPL directory having populated was inadequate...

sorig/shogun,shogun-toolbox/shogun,lisitsyn/shogun,karlnapf/shogun,besser82/shogun,lambday/shogun,lisitsyn/shogun,lisitsyn/shogun,sorig/shogun,lisitsyn/shogun,karlnapf/shogun,lambday/shogun,shogun-toolbox/shogun,besser82/shogun,karlnapf/shogun,lambday/shogun,shogun-toolbox/shogun,karlnapf/shogun,geektoni/shogun,geektoni/shogun,lambday/shogun,sorig/shogun,geektoni/shogun,geektoni/shogun,shogun-toolbox/shogun,karlnapf/shogun,lambday/shogun,sorig/shogun,karlnapf/shogun,sorig/shogun,shogun-toolbox/shogun,besser82/shogun,lambday/shogun,geektoni/shogun,lisitsyn/shogun,lisitsyn/shogun,geektoni/shogun,sorig/shogun,besser82/shogun,besser82/shogun,shogun-toolbox/shogun,besser82/shogun