[tz] [PROPOSED] * tz-how-to.html: Update URLs.

[Paul Eggert]

---
 tz-how-to.html | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tz-how-to.html b/tz-how-to.html
index a94759e..91a0d48 100644
--- a/tz-how-to.html
+++ b/tz-how-to.html
@@ -519,7 +519,7 @@ usage</i>, which is not necessarily “correct” by law. For
 example, the last line in
 <code>Zone</code> <code>Pacific/Honolulu</code> (shown below) gives
 “HST” for “Hawaii standard time” even though the
-<a href="http://www.law.cornell.edu/uscode/html/uscode15/usc_sec_15_00000263----000-.html">legal</a>
+<a href="https://www.law.cornell.edu/uscode/text/15/263">legal</a>
 name for that time zone is “Hawaii-Aleutian standard time.”
 This author has read that there are also some places in Australia where
 popular time zone names differ from the legal ones.
@@ -531,7 +531,7 @@ the abbreviations. They are intended to be the values returned through the
 <a href="https://en.wikipedia.org/wiki/C_(programming_language)">C</a>’s
 <a href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/strftime.html"><code>strftime</code></a>
 function in the
-<a href="http://www.chemie.fu-berlin.de/chemnet/use/info/libc/libc_19.html#SEC324">“C” locale</a>.
+<a href="http://kirste.userpage.fu-berlin.de/chemnet/use/info/libc/libc_19.html#SEC324">“C” locale</a>.
 
 <li>If there is no generally-accepted abbreviation for a time zone,
 a numeric offset is used instead, e.g., <code>+07</code> for 7 hours
-- 
2.13.5