Use 'sonw' instead of 'eow'

With GothenburgBitFactory/taskwarrior#2519, all 'end of *' named dates have been changed to be the last minute of the respective date.
This caused the ':lastweek' hint to miss the last day of its range.

Closes #493

Signed-off-by: Thomas Lauf <thomas.lauf@tngtech.com>

AUTHORS

@@ -118,3 +118,6 @@ Thanks to the following, who submitted detailed bug reports and excellent sugges
   Leon Grünewald
   Ivo Forlin
   aMOPel
+  Per Møldrup-Dalum
+  Beshoy Girgis
+  Sergey Zhuravlevich

ChangeLog

@@ -1,3 +1,5 @@
+- #493    :lastweek doesn't count last Sunday
+          (thanks to Saulius Krasuckas, Per Møldrup-Dalum, Beshoy Girgis, Sergey Zhuravlevich)
 -         Add ':today' hint
 
  ------ current release ---------------------------

src/helper.cpp

@@ -189,17 +189,16 @@ bool expandIntervalHint (
   // Some require math.
   if (hint == ":lastweek")
   {
-    // Note: Simply subtracting (7 * 86400) from sow, eow fails to consider
+    // Note: Simply subtracting (7 * 86400) from sow/sonw fails to consider daylight saving time.
-    //       daylight savings.
     Datetime sow ("sow");
     int sy = sow.year ();
     int sm = sow.month ();
     int sd = sow.day ();
 
-    Datetime eow ("eow");
+    Datetime sonw ("sonw");
-    int ey = eow.year ();
+    int ey = sonw.year ();
-    int em = eow.month ();
+    int em = sonw.month ();
-    int ed = eow.day ();
+    int ed = sonw.day ();
 
     sd -= 7;
     if (sd < 1)