Revert "Clarify documentation for the initcap function"

This reverts commit 1fe9e3822c4e574aa526b99af723e61e03f36d4f.  That commit
was a documentation improvement, not a bug fix.  We don't normally backpatch
such changes.

Discussion: https://postgr.es/m/d8eacbeb8194c578a98317b86d7eb2ef0b6eb0e0.camel%40j-davis.com

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 05e6d78ad6a052ffcff0bf446435b7dbe2233dac..479b66b0a5b3409e74e0f3917ba04bd8a02cd5a9 100644 (file)
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -3148,11 +3148,8 @@ SELECT NOT(ROW(table.*) IS NOT NULL) FROM TABLE; -- detect at least one null in
        </para>
        <para>
         Converts the first letter of each word to upper case and the
-        rest to lower case. When using the <literal>libc</literal> locale
-        provider, words are sequences of alphanumeric characters separated
-        by non-alphanumeric characters; when using the ICU locale provider,
-        words are separated according to
-        <ulink url="https://www.unicode.org/reports/tr29/#Word_Boundaries">Unicode Standard Annex #29</ulink>.
+        rest to lower case. Words are sequences of alphanumeric
+        characters separated by non-alphanumeric characters.
        </para>
        <para>
         <literal>initcap('hi THOMAS')</literal>