correct highlight after text ends #265

Job	Run time
windows (HUGE, msvc, no, no, x64)	9m 12s
windows (HUGE, mingw, yes, yes, x86, yes)	15m 55s
windows (HUGE, msvc, no, yes, x86)	8m 56s
windows (HUGE, mingw, yes, no, x64, yes)	9m 17s
windows (NORMAL, msvc, yes, no, x86)	8m 59s
windows (NORMAL, mingw, no, yes, x64)	11m 25s
windows (TINY, msvc, yes, yes, x64)	2m 32s
windows (TINY, mingw, no, no, x86)	4m 9s
macos (tiny)	3m 54s
macos (normal)	7m 16s
macos (huge)	14m 38s
linux (tiny, clang, none)	1m 48s
linux (tiny, gcc, none)	1m 26s
linux (normal, clang, none)	9m 33s
linux (normal, gcc, none)	7m 53s
linux (huge, clang, none)	9m 8s
linux (huge, gcc, none)	13m 59s
linux (tiny, clang, nogui)	1m 38s
linux (tiny, gcc, nogui)	1m 23s
linux (huge, gcc, testgui, true, true)	10m 54s
linux (huge, clang, asan)	20m 27s
linux (huge, gcc, unittests, true)	2m 39s
linux (normal, gcc, vimtags)	1m 32s
	2h 58m 33s

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