RFR: 8354260: Launcher help text is wrong for -Xms

[Jan Lahoda]

On Tue, 6 May 2025 08:02:21 GMT, Christian Stein <cstein at openjdk.org> wrote:

> Please review this update to synchronize the extra help text for `-Xms` with the description given in the manpage.
> 
> Copied from the issue:
>> The launcher help text for -Xms is wrong and should be updated to match the manpage description. The actual meaning of -Xms is that it sets both the initial and minimum Java heap size, not just the initial Java heap size.
>>
>> ````
>> $ java -X
>> ...
>> -Xms<size> set initial Java heap size
>> ````
>>
>> From the manpage:
>> ````
>> `-Xms` *size*
>> : Sets the minimum and the initial size (in bytes) of the heap. This value
>>     must be a multiple of 1024 and greater than 1 MB. Append the letter `k` or
>>     `K` to indicate kilobytes, `m` or `M` to indicate megabytes, or `g` or `G`
>>     to indicate gigabytes. The following examples show how to set the size of
>>     allocated memory to 6 MB using various units:
>> ````

Looks good to me.

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Marked as reviewed by jlahoda (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25058#pullrequestreview-2820511606