Description of problem:

Changes in Latest RHEL3.8 pdksh-5.2.14-21.5 have introduced the following 
reproducible problems:

Problem #1
pdksh no longer supports the USR1 and USR2 Signal names.  The rename fix 
disables using USR1 and USR2 in trap calls, must use SIGUSR1 and SIGUSR2. Other 
traps, INT, TERM, HUP, etc. allow the use of either the posix or the short 
names.
> Sample program
> #!/bin/ksh
> trap "Echo USR1" USR1
>
> Error message
>
> /tmp/junk[2]: trap: bad signal USR1

Problem #2
pdksh triggers the SIGTERM trap whenever a function or
command call returns a non-zero value.
>
> Sample programs A:
>
> #!/bin/ksh
> trap "echo got sigTERM"  TERM
> doit()
> {
>         return 1
> }
> doit
>
> Sample A output:
>
> got sigTERM
>
>
> Sample programs B:

> #!/bin/ksh
> trap "echo got sigTERM"  TERM
>
> ls -l /tmp/non_existing_file
>
> Sample B output:
>
> ls: /tmp/non_existing_file: No such file or directory
> got sigTERM
>

Problem does not occur with previous RHEL3 version pdksh-5.2.14-21

Also of note: These problems do not occur on the Latest RHEL4.4 pdksh.

Version-Release number of selected component (if applicable):
pdksh-5.2.14-21.5

How reproducible:
100%

Steps to Reproduce:
1.See above descriptions - Sample scripts
2.
3.
  
Actual results:

bad signal USR1

and

TERM trap is triggered incorrectly 

Expected results:

No bad Signal Message

Program/scripts should continue

Additional info: