[gnumeric] number-match: fix bogus time match for "3.a"

[Morten Welinder <mortenw src gnome org>]

commit d38af0959300bf98277ef99afaa45bbd12991468
Author: Morten Welinder <terra gnome org>
Date:   Thu Dec 10 20:57:30 2020 -0500

    number-match: fix bogus time match for "3.a"
    
    A stray dot was left in a regular expression.

 NEWS               | 1 +
 src/number-match.c | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/NEWS b/NEWS
index 8ef828050..c5199ccb2 100644
--- a/NEWS
+++ b/NEWS
@@ -12,6 +12,7 @@ Morten:
        * Fix cvs separator guessing problem with quotes.  [#537]
        * Improve handling of expressions in csv files.
        * Plug ssconvert leak.  [#546]
+       * Fix bogus time match for "3.a".  [#545]
 
 --------------------------------------------------------------------------
 Gnumeric 1.12.48
diff --git a/src/number-match.c b/src/number-match.c
index 4b1554960..dfc2fc832 100644
--- a/src/number-match.c
+++ b/src/number-match.c
@@ -301,7 +301,7 @@ datetime_locale_setup (char const *lc_time)
        /* ^(((\d+):)?(\d+):)?(\d+.\d*)\s*$ */
        s = g_strconcat ("^(((\\d+):)?(\\d+):)?(\\d+",
                         p_decimal->str,
-                        ".\\d*)\\s*$",
+                        "\\d*)\\s*$",
                         NULL);
        datetime_locale_setup1 (&datetime_locale.re_hhmmssds, s);
        g_free (s);