add libXfont2 patch to fix build when libbsd is present

[branfosj]

(created using eb --new-pr)

fixes #12017

• libXfont2 2.0.5 already has this fix
• linXfont2 2.0.3 is fine (X11-20201008-GCCcore-10.2.0.eb fails at installing bundle component #12017 (comment))

[boegel]

@boegelbot please test @ generoso
CORE_CNT=16

[boegelbot]

@boegel: Request for testing this PR well received on login1

PR test command 'EB_PR=14821 EB_ARGS= /opt/software/slurm/bin/sbatch --job-name test_PR_14821 --ntasks="16" ~/boegelbot/eb_from_pr_upload_generoso.sh' executed!

• exit code: 0
• output:

Submitted batch job 7935

Test results coming soon (I hope)...

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[boegelbot]

Test report by @boegelbot
SUCCESS
Build succeeded for 2 out of 2 (2 easyconfigs in total)
cnx1 - Linux UNKNOWN UNKNOWN, x86_64, Intel(R) Xeon(R) CPU E5-2690 v3 @ 2.60GHz (haswell), Python 3.6.8
See https://gist.github.com/a6b23c46b72ec6617783c7c09e456c45 for a full test report.

[boegel]

Test report by @boegel
SUCCESS
Build succeeded for 2 out of 2 (2 easyconfigs in total)
node3508.doduo.os - Linux UNKNOWN UNKNOWN, x86_64, AMD EPYC 7552 48-Core Processor (zen2), Python 3.6.8
See https://gist.github.com/9290eb997ae65592ea61fca783369843 for a full test report.

[boegel]

lgtm

[boegel]

Going in, thanks @branfosj!

[boegel]

Test report by @boegel
SUCCESS
Build succeeded for 2 out of 2 (2 easyconfigs in total)
node3126.skitty.os - Linux UNKNOWN UNKNOWN, x86_64, Intel(R) Xeon(R) Gold 6140 CPU @ 2.30GHz (skylake_avx512), Python 3.6.8
See https://gist.github.com/d3ebef8c35e5f310fc9b7965b92d9e26 for a full test report.