added try/except for the delete logbook entry input from user

mL-ham_logbook.mpy

@@ -147,7 +147,7 @@ def addLogBook() :
   writeln("|CL")
 
   write("Enter the date for this log entry (YYYY-MM-DD HH:MM:SS): ")
-  getDate = getstr(1,16,16,now)
+  getDate = getstr(1,20,20,now)
   if not getDate :
     return isNull()
 
@@ -222,6 +222,7 @@ def delLogBook() :
       writeln("["+str(I+1)+"] "+tmpDB[I])
     write("|CREnter the number of the entry to delete: ")
     getDate = getstr(1,16,16,"")
+    try:
       if getDate :
         NUM = int(getDate) - 1
         if tmpDB[NUM] in db["logs"] :
@@ -232,6 +233,9 @@ def delLogBook() :
         else :
           writeln("No log entry with that date, please check and try again.")
           writeln("|PA")
+    except:
+      writeln("You entered invalid data, aborted!")
+      writeln("|PA")
   else:
     writeln("")
     writeln("No records to delete. Aborted.".center(71))