MPH_redirect_output - redirect output from each component

This routine redirects output to a log file defined by an environment variable. System functions ("getenv" for IBM and "pxfgetenv" for SGI and T3E) are used to retrieve the environmet variable.

REMARKS:

      In order to redirect component output to a separate file, 
      a user will setup something like the following in the run script:
           setenv ice_out_env ice.log
           setenv land_out_env land.log
           setenv cpl_out_env cpl.log

REVISION HISTORY:

       2001-Nov-15 -- add PROTEX convention
       2001-May-20 -- first prototype

INTERFACE:

       subroutine MPH_redirect_output (name)

USES:

       implicit none

INPUT PARAMETERS:

       character(len=*), intent(in) :: name   ! part of the log file name

LOCAL VARIABLES:

       integer :: lenname, lenval, rcode
       character(len=32) :: output_name_env
       character(len=64) :: output_name, temp_value

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