[SYSDM] Improve de-DE Uptime format translation

I tried initially to use Tag(e) but that does look too
crowded with the stuff after it. Since Windows is also not
consistent with the () for singular vs plural, I did chose
always plural "Tage".
Most often people will see "0 Tage" anyway, and that fits well.

Author: JoachimHenze

dll/cpl/sysdm/lang/de-DE.rc

@@ -319,7 +319,7 @@ BEGIN
     IDS_PETABYTE "PB RAM"
     IDS_MEGAHERTZ "MHz"
     IDS_GIGAHERTZ "GHz"
-    IDS_UPTIME_FORMAT "%u Days, %02u:%02u:%02u"
+    IDS_UPTIME_FORMAT "%u Tage, %02u:%02u:%02u"
     IDS_VARIABLE "Variable"
     IDS_VALUE "Wert"
     IDS_NO_DUMP "(Keine)"