Log Message:
p5-Scalar-List-Utils: update to 1.50.

1.50 -- 2018-02-20 19:13:27
	[CHANGES]
	 * Added head() and tail() functions (thanks preaction)
	 * Support binary and Unicode in symbol names for set_subname()

	[BUGFIXES]
	 * Fix building with C++ and C89 compilers
	 * Fix uniq() test for old Test::More
	 * Fix example get_code_info for unnamed subs (RT#116962)
	 * Fixes for symbol names containing ' characters
         * Don't leak SVs from sum0/product1 when called with zero args
	   (RT#124017)
         * Use sv_rvunweaken() in Scalar::Util::unweaken() (thanks ilmari)
	 * Misc. fixes for perl 5.6