[gnome-calculator] Change "kHZ" to "kHz"

[Robert Roth <robertroth src gnome org>]

commit 8c38086a6fc0fe1467c69a9e0228c64ab0a99bf9
Author: scootergrisen <scootergrisen gmail com>
Date:   Thu Apr 29 15:31:21 2021 +0000

    Change "kHZ" to "kHz"

 lib/unit.vala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/lib/unit.vala b/lib/unit.vala
index 417b55c0..9937dfa4 100644
--- a/lib/unit.vala
+++ b/lib/unit.vala
@@ -137,7 +137,7 @@ public class UnitManager : Object
         digitalstorage_category.add_unit (new Unit ("yobibit", _("Yobibits"), dpgettext2 (null, 
"unit-format", "%s Yib"), "1208925819614629174706176x/8", "8x/1208925819614629174706176", dpgettext2 (null, 
"unit-symbols", "yobibit,yobibits,Yib")));
         digitalstorage_category.add_unit (new Unit ("yobibyte", _("Yobibytes"), dpgettext2 (null, 
"unit-format", "%s YiB"), "1208925819614629174706176x", "x/1208925819614629174706176", dpgettext2 (null, 
"unit-symbols", "yobibyte,yobibytes,YiB")));
         frequency_category.add_unit (new Unit ("hertz", _("Hertz"), dpgettext2 (null, "unit-format", "%s 
Hz"), "x", "x", dpgettext2 (null, "unit-symbols", "hertz,Hz")));
-        frequency_category.add_unit (new Unit ("kilohertz", _("Kilohertz"), dpgettext2 (null, "unit-format", 
"%s kHz"), "1000x", "x/1000", dpgettext2 (null, "unit-symbols", "kilohertz,kHZ")));
+        frequency_category.add_unit (new Unit ("kilohertz", _("Kilohertz"), dpgettext2 (null, "unit-format", 
"%s kHz"), "1000x", "x/1000", dpgettext2 (null, "unit-symbols", "kilohertz,kHz")));
         frequency_category.add_unit (new Unit ("megahertz", _("Megahertz"), dpgettext2 (null, "unit-format", 
"%s MHz"), "1000000x", "x/1000000", dpgettext2 (null, "unit-symbols", "megahertz,MHz")));
         frequency_category.add_unit (new Unit ("gigahertz", _("Gigahertz"), dpgettext2 (null, "unit-format", 
"%s GHz"), "1000000000x", "x/1000000000", dpgettext2 (null, "unit-symbols", "gigahertz,GHz")));
         frequency_category.add_unit (new Unit ("terahertz", _("Terahertz"), dpgettext2 (null, "unit-format", 
"%s THz"), "1000000000000x", "x/1000000000000" ,dpgettext2 (null, "unit-symbols", "terahertz,THz")));