[S] Change in flashrom[master]: test_build.sh: Delete old build dir when Meson is used

[Felix Singer (Code Review)]

Hello build bot (Jenkins),

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/flashrom/+/67541

to look at the new patch set (#3).

Change subject: test_build.sh: Delete old build dir when Meson is used
......................................................................

test_build.sh: Delete old build dir when Meson is used

Make sure to start from a clean environment when Meson is used. Also,
rename the variable "builddir" to "build_dir" for better readability and
to avoid typos.

Signed-off-by: Felix Singer 
Change-Id: I050ed916685728cbed9c10601a6bcad6d59a4eda
---
M test_build.sh
1 file changed, 21 insertions(+), 4 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/41/67541/3