do a _TestValidity on init of ValidatedTextCtrl for floats so bad values are immediately flagged

Author: vondreele

GSASII/GSASIIctrlGUI.py

@@ -429,6 +429,7 @@ def __init__(self,parent,loc,key,nDig=None,notBlank=True,xmin=None,xmax=None,
             else:
                 self.invalid = True
                 self._IndicateValidity()
+            wx.CallAfter(self._TestValidity)    # entry changed, test/show validity
         else:
             if self.CIFinput:
                 wx.TextCtrl.__init__(
@@ -468,7 +469,7 @@ def SetValue(self,val,warn=True):
         # for debugging flag calls. Set warn to False for calls that are not in callbacks
         # and thus are OK
         if GSASIIpath.GetConfigValue('debug') and warn:
-            print('ValidatedTxtCtrl.SetValue() used in callback. Batter as ChangeValue()?')
+            print('ValidatedTxtCtrl.SetValue() used in callback. Better as ChangeValue()?')
             G2obj.HowDidIgetHere(True)
         if self.result is not None:
             self.result[self.key] = val