Fix overflow if dropStr is large

[onurtore]

🦟 Bug fix

Fixes https://github.com/gazebosim/gz-common/pull/393

Summary

Large mesh file names creates ugly error message due to overflow. This commit fixes this.

Checklist

• [X] Signed all commits for DCO
• [ ] Added tests
• [ ] Updated documentation (as needed)
• [ ] Updated migration guide (as needed)
• [ ] Consider updating Python bindings (if the library has them)
• [ ] codecheck passed (See contributing)
• [ ] All tests passed (See test coverage)
• [ ] While waiting for a review on your PR, please help review another open pull request to support the maintainers

Note to maintainers: Remember to use Squash-Merge and edit the commit message to match the pull request summary while retaining Signed-off-by messages.

[chapulina]

You may want to target this at the gz-sim7 branch, so that the fix goes into the initial Garden release

[onurtore]

You may want to target this at the gz-sim7 branch, so that the fix goes into the initial Garden release

Do I have to create new PR for that?

[ahcorde]

You may want to target this at the gz-sim7 branch, so that the fix goes into the initial Garden release

Do I have to create new PR for that?

I already did it, you should:

git rebase -i HEAD~2
# remove line *Bump main to 8.0.0~pre1 *
# save and exit
git push -f origin otore19/addNewLine2

[azeey]

Homebrew failures don't seem to be related to this PR. Merging.