xrdp-droppriv erroneous includes #1218

Job	Run time
min features with gcc	2m 12s
code formatting check	21s
min features with g++	1m 50s
cppcheck	5m 23s
min features with clang	2m 2s
max features with gcc	4m 0s
max features with g++	2m 14s
max features with clang	3m 33s
max features with gcc and DEBUG	2m 20s
max features with gcc for 32-bit arch (legacy OS)	1m 28s
max features with g++ for 32-bit arch (legacy OS)	1m 32s
max features with clang for 32-bit arch (legacy OS)	1m 38s
	28m 33s

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