Update to 2.16.2.

• Exclude .git directories from error reporting [1]
• Add some additional Perl checks for STAGEDIR [2]
• Try not to flag on direct use of "install" if we're running a make command [3]
• Fix the checks for Perl given the new hierarchy [4]

PR: 195780 [1]

		194759 [3]
		196222 [4]

Submitted by: gerald [3]

		Yasuhiro KIMURA <yasu@utahime.org> [1]

Requested by: mat [2]