5819 want dumpadm(1m) option to print estimated dump size

*** 4,14 ****
  
  NAME
         dumpadm - configure operating system crash dump
  
  SYNOPSIS
!        /usr/sbin/dumpadm [-nuy] [-c content-type] [-d dump-device]
              [-m mink | minm | min%] [-s savecore-dir]
              [-r root-dir] [-z on | off]
  
  
  DESCRIPTION
--- 4,14 ----
  
  NAME
         dumpadm - configure operating system crash dump
  
  SYNOPSIS
!        /usr/sbin/dumpadm [-enuy] [-c content-type] [-d dump-device]
              [-m mink | minm | min%] [-s savecore-dir]
              [-r root-dir] [-z on | off]
  
  
  DESCRIPTION
*** 132,141 ****
--- 132,145 ----
                 If the special token none is specified, the active dump device
                 is removed and crash dumps are disabled.
  
  
  
+        -e
+            Estimates the size of the dump for the current running system.
+ 
+ 
         -m mink | minm | min%
             Create a minfree file in the current savecore directory indicating
             that savecore should maintain at least the specified amount of free
             space in the file system where the savecore directory is located.
             The min argument can be one of the following:
*** 325,330 ****
         similar permissions, as the operating system crash dump files
         themselves may contain secure information.
  
  
  
!                                February 15, 2013                   DUMPADM(1M)
--- 329,334 ----
         similar permissions, as the operating system crash dump files
         themselves may contain secure information.
  
  
  
!                                  April 9, 2015                     DUMPADM(1M)