Ctags write to buffer beyond the end of it when the source file doesn't end with '\n'. It brings segmentation fault.
Ctags write to buffer beyond the end of it when the source file
doesn't end with '\n'. It brings segmentation fault.

PR:		4812
Reviewed by:	phk
Submitted by:	Shigio Yamaguchi <shigio@wafu.netgate.net>

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