Re: [PATCH v2 2/3] revisions.txt: mark optional rev arguments with []

> Am 27.04.19 um 14:16 schrieb Denton Liu:
>> In revisions.txt, an optional rev argument was not distinguised.
>> Instead, a user had to continue and read the description in order to
>> learn that the argument was optional.
>>
>> Since the [] notation for an optional argument is common-knowledge in
>> the Git documentation, mark optional arguments with [] so that it's more
>> obvious for the reader.
>>
>> Signed-off-by: Denton Liu <liu.denton@gmail.com>
>> ---
>>  Documentation/revisions.txt | 6 +++---
>>  1 file changed, 3 insertions(+), 3 deletions(-)
>>
>> diff --git a/Documentation/revisions.txt b/Documentation/revisions.txt
>> index e5f11691b1..68cce2ca06 100644
>> --- a/Documentation/revisions.txt
>> +++ b/Documentation/revisions.txt
> 
> I think I found another one here:
> 
> @@ -65,7 +65,7 @@ some output processing may assume ref names in UTF-8.
>  '@'::
>    '@' alone is a shortcut for `HEAD`.
>  
> -'<refname>@{<date>}', e.g. 'master@\{yesterday\}', 'HEAD@{5 minutes ago}'::
> +'[<refname>]@{<date>}', e.g. 'master@\{yesterday\}', 'HEAD@{5 minutes ago}'::
>    A ref followed by the suffix '@' with a date specification
>    enclosed in a brace
>    pair (e.g. '\{yesterday\}', '{1 month 2 weeks 3 days 1 hour 1
> 
> The doesn't give a hint that <refname> is optional but actually it is.
> 
>> @@ -95,7 +95,7 @@ some output processing may assume ref names in UTF-8.
>>    The construct '@{-<n>}' means the <n>th branch/commit checked out
>>    before the current one.
>>  
>> -'<branchname>@\{upstream\}', e.g. 'master@\{upstream\}', '@\{u\}'::
>> +'[<branchname>]@\{upstream\}', e.g. 'master@\{upstream\}', '@\{u\}'::
>>    The suffix '@\{upstream\}' to a branchname (short form '<branchname>@\{u\}')
>>    refers to the branch that the branch specified by branchname is set to build on
>>    top of (configured with `branch.<name>.remote` and
>> @@ -103,7 +103,7 @@ some output processing may assume ref names in UTF-8.
>>    current one. These suffixes are also accepted when spelled in uppercase, and
>>    they mean the same thing no matter the case.
>>  
>> -'<branchname>@\{push\}', e.g. 'master@\{push\}', '@\{push\}'::
>> +'[<branchname>]@\{push\}', e.g. 'master@\{push\}', '@\{push\}'::
>>    The suffix '@\{push}' reports the branch "where we would push to" if
>>    `git push` were run while `branchname` was checked out (or the current
>>    `HEAD` if no branchname is specified). Since our push destination is
>> @@ -131,7 +131,7 @@ from one location and push to another. In a non-triangular workflow,
>>  This suffix is also accepted when spelled in uppercase, and means the same
>>  thing no matter the case.
>>  
>> -'<rev>{caret}', e.g. 'HEAD{caret}, v1.5.1{caret}0'::
>> +'<rev>{caret}[<n>]', e.g. 'HEAD{caret}, v1.5.1{caret}0'::
>>    A suffix '{caret}' to a revision parameter means the first parent of
>>    that commit object.  '{caret}<n>' means the <n>th parent (i.e.
>>    '<rev>{caret}'
>