crecord: draw on the whole screen

When starting crecord, one can see that it has a small gap on the rightmost
column which doesn't get used. This is in contrast to other interactive curses
frontends such as chistedit.

Disabling the displaying of the cursor allows drawing on the whole availabe
area and thus some hacky code in align() could be removed.

Differential Revision: https://phab.mercurial-scm.org/D6171

mercurial/crecord.py

@@ -962,8 +962,8 b' class curseschunkselector(object):'
         # turn tabs into spaces
         instr = instr.expandtabs(4)
         strwidth = encoding.colwidth(instr)
-        numspaces = (width - ((strwidth + xstart) % width) - 1)
-        return instr + " " * numspaces + "\n"
+        numspaces = (width - ((strwidth + xstart) % width))
+        return instr + " " * numspaces
 
     def printstring(self, window, text, fgcolor=None, bgcolor=None, pair=None,
         pairname=None, attrlist=None, towin=True, align=True, showwhtspc=False):
@@ -1770,6 +1770,12 b' are you sure you want to review/edit and'
         # fit on the terminal.
         self.stdscr.clear()
 
+        # don't display the cursor
+        try:
+            curses.curs_set(0)
+        except curses.error:
+            pass
+
         # available colors: black, blue, cyan, green, magenta, white, yellow
         # init_pair(color_id, foreground_color, background_color)
         self.initcolorpair(None, None, name="normal")