Uncomment printf. Allow 15-min timezones for leap-seconds as well #4644

Job	Run time
gcc	11m 7s
gcc (CFLAGS=-DTCL_NO_DEPRECATED=1)	11m 21s
gcc (--disable-shared)	11m 28s
gcc (--disable-zipfs)	11m 20s
gcc (--enable-symbols)	11m 40s
gcc (--enable-symbols=mem)	13m 13s
msvc	10m 13s
gcc (--enable-symbols=all)	14m 28s
msvc (CHECKS=nodep)	10m 6s
msvc (OPTS=static)	11m 1s
msvc (OPTS=noembed)	10m 17s
msvc (OPTS=symbols)	10m 56s
msvc (OPTS=symbols STATS=compdbg,memdbg)	14m 28s
	2h 31m 38s

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