Related tdf#145332 Fix sentence about TRUNC function

As discussed in the original commit [1] the wording about the TRUNC function was incorrect. This patch fixes the sentence.

[1] 6b1075e1e032be5bb6cba1dbdcc11de2a1824add

Change-Id: Iec86eb4c881dbfbbb3e2020a7aedd6ff59bf0e61
Reviewed-on: https://gerrit.libreoffice.org/c/help/+/148767
Tested-by: Jenkins
Reviewed-by: Olivier Hallot <olivier.hallot@libreoffice.org>
diff --git a/source/text/scalc/01/func_trunc.xhp b/source/text/scalc/01/func_trunc.xhp
index ed3a1b9..47d4d36 100644
--- a/source/text/scalc/01/func_trunc.xhp
+++ b/source/text/scalc/01/func_trunc.xhp
@@ -29,7 +29,7 @@
  </section>
  <paragraph role="paragraph" id="par_id701642530512560">This function is equivalent to the <link href="text/scalc/01/func_rounddown.xhp">ROUNDDOWN function</link>.</paragraph>
  <section id="trunc_tip">
    <tip id="par_id321641927458888">The rounding method used by this function is known as <emph>rounding towards zero</emph>. The resulting number will always be smaller than or equal to the original number.</tip>
    <tip id="par_id321641927458888">The rounding method used by this function is known as <emph>rounding towards zero</emph>. The magnitude of the resulting number will always be less than or equal to the original number.</tip>
  </section>
  <embed href="text/scalc/01/ful_func.xhp#func_head_syntax"/>
  <paragraph role="paragraph" id="par_id341641927560587">