target_include_directories ABSL_COMMON_INCLUDE_DIRS need in in quotes

[curoky]

abseil-cpp/CMake/AbseilHelpers.cmake

Lines 146 to 150 in 262d74b

	target_include_directories(${_NAME}
	INTERFACE
	$<BUILD_INTERFACE:${ABSL_COMMON_INCLUDE_DIRS}>
	$<INSTALL_INTERFACE:${ABSL_INSTALL_INCLUDEDIR}>
	)

should putting $<BUILD_INTERFACE:${ABSL_COMMON_INCLUDE_DIRS}> in quotes.

The reason is that ABSL_COMMON_INCLUDE_DIRS is a list here, and thus maybe contains a ;.
For more details look https://stackoverflow.com/questions/44425257/how-to-properly-use-target-include-directories-with-lists-of-includes