8336291: [11u] update for deprecated sprintf for jdk.pack

[vieiro]

This fixes JDK-8336291 by replacing the deprecated sprintf with snprintf in different files jdk.pack. Low risk.

This is a 11u specific issue, as jdk.pack was removed in JDK-8234596 in OpenJDK 14.

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Progress

• [ ] Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• [x] Change must not contain extraneous whitespace
• [x] Commit message must refer to an issue
• [ ] JDK-8336291 needs maintainer approval

Integration blocker

 ⚠️ Dependency #2849 must be integrated first

Issue

• JDK-8336291: [11u] update for deprecated sprintf for jdk.pack (Enhancement - P4)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk11u-dev.git pull/2853/head:pull/2853
$ git checkout pull/2853

Update a local copy of the PR:
$ git checkout pull/2853
$ git pull https://git.openjdk.org/jdk11u-dev.git pull/2853/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 2853

View PR using the GUI difftool:
$ git pr show -t 2853

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk11u-dev/pull/2853.diff

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