Remove year from copyright notice on About MacVim page #750

Job	Run time
build-and-test (macos-12, 13.2.1, vimtags, check-xcodeproj-compat)	29m 17s
build-and-test (macos-12, 13.2.1, vimtags, check-xcodeproj-compat)	29m 17s
build-and-test (macos-12, 13.2.1, vimtags, check-xcodeproj-compat)	29m 17s
build-and-test (macos-12, 14.0, true, true, _10.9)	15m 42s
build-and-test (macos-12, 14.0, true, true, _10.9)	11m 39s
build-and-test (macos-12, 14.0, true, true, _10.9)	11m 46s
build-and-test (macos-13, 15.2, true)	35m 20s
build-and-test (macos-13, 15.2, true)	35m 20s
build-and-test (macos-13, 15.2, true)	35m 20s
build-and-test (macos-14, 15.2, true, true)	43m 22s
build-and-test (macos-14, 15.2, true, true)	43m 22s
build-and-test (macos-14, 15.2, true, true)	43m 22s
	6h 3m 4s

Provide feedback