tools/kvm_stat: rename 'Current' column to 'CurAvg/s'

'Current' can be misleading as it doesn't tell whether this is the amount
of events in the last interval or the current average per second.
Note that this necessitates widening the respective column by one more
character.
Signed-off-by: NStefan Raspl <raspl@linux.vnet.ibm.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

tools/kvm/kvm_stat/kvm_stat

@@ -981,8 +981,8 @@ class Tui(object):
             if len(regex) > MAX_REGEX_LEN:
                 regex = regex[:MAX_REGEX_LEN] + '...'
             self.screen.addstr(1, 17, 'regex filter: {0}'.format(regex))
-        self.screen.addstr(2, 1, '%-40s %10s%7s %7s' %
-                           ('Event', 'Total', '%Total', 'Current'),
+        self.screen.addstr(2, 1, '%-40s %10s%7s %8s' %
+                           ('Event', 'Total', '%Total', 'CurAvg/s'),
                            curses.A_STANDOUT)
         self.screen.addstr(4, 1, 'Collecting data...')
         self.screen.refresh()
@@ -1010,7 +1010,7 @@ class Tui(object):
                 break
             if values[0] is not None:
                 cur = int(round(values[1] / sleeptime)) if values[1] else ''
-                self.screen.addstr(row, 1, '%-40s %10d%7.1f %7s' %
+                self.screen.addstr(row, 1, '%-40s %10d%7.1f %8s' %
                                    (key, values[0], values[0] * 100 / total,
                                     cur))
             row += 1