Hi,
Yah you're right about the manual. It says that for z/OS COBOL use HOST(IBMCOB). I suspect that because you get a error message the Install Default is used.
Looking at the message code:
IBM Knowledge Center
it even gets more odd.
DSNH042I
W csectname OPTION: option OPTION INVALID FOR HOST LANGUAGE
Explanation
The option identified in the message is not valid. The QUOTE and COMMA options are not permitted with HOST(ASM), HOST(PLI), or HOST(C). The TWOPASS option is not permitted with HOST(COBOL).
System action
The specified option is ignored.
User response
Remove the invalid option, or correct the host specification.
Severity
4 (warning)
Notice the HOST(COBOL) is used as an example. Try HOST(COBOL) maybe the manual is wrong? You may also want to find out what they used as the default at install time.
Richard