build

app/testpmd: fix interactive mode on Windows #238

Job	Run time
ubuntu-20.04-gcc-static	10m 16s
ubuntu-20.04-gcc-shared-mini	55s
ubuntu-20.04-gcc-shared-abi+doc+tests	12m 53s
ubuntu-20.04-clang-static	1m 56s
ubuntu-20.04-clang-shared-doc+tests	3m 56s
ubuntu-20.04-gcc-static-i386	1m 16s
ubuntu-20.04-gcc-static-aarch64	13m 1s
ubuntu-20.04-gcc-shared-aarch64	12m 58s
ubuntu-20.04-gcc-static-ppc64le	6m 47s
ubuntu-20.04-gcc-shared-ppc64le	7m 9s
	1h 11m 7s

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