gnucash maint: Multiple changes pushed

[Christopher Lam]

Updated	 via  https://github.com/Gnucash/gnucash/commit/9d28edb3 (commit)
	 via  https://github.com/Gnucash/gnucash/commit/be96f3bf (commit)
	from  https://github.com/Gnucash/gnucash/commit/59f3376e (commit)



commit 9d28edb332559723bd6fe1ba71973f92b146137b
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Sun Aug 9 13:27:59 2020 +0800

    [gnucash-commands.cpp] fix guile error handling
    
    * id is an SCM object which is never NULL, but may be #f to signal error.

commit be96f3bf68058a62e6de0566526597de8f894a67
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Sun Aug 9 13:26:53 2020 +0800

    [report-core] better documentation and handle ambiguous reportnames
    
    * add comments describing args and return val
    * rename vars to better describe them
    * exported gnc:cmdline-template-export and gnc:cmdline-get-report-id
      handle ambiguous reportnames by returning #f



Summary of changes:
 gnucash/gnucash-commands.cpp   |  7 ++++--
 gnucash/report/report-core.scm | 49 +++++++++++++++++++++++++++---------------
 2 files changed, 37 insertions(+), 19 deletions(-)