bug#57831: [PATCH] testsuite: Remove stray semicolon

[Marvin Schmidt]

It unintentionally ends the `export` command causing all the following
variables not being exported to the test environment

I was backporting the alleged fix[1] for the problem that leads to the
following failure of the inplace-selinux.sh
```
inplace-selinux.sh: set-up failure: CONFIG_HEADER not defined
```
but the test still failed for me in the same way. Investigating the
problem I noticed that some variables from the `TESTS_ENVIRONMENT`
weren't present in the test. I then noticed the semicolon in the
`built_program=sed;` line and figured that it probably ends the `export`
command unintentionally.

Looking at the original patch[1] showed that Chris Marusich inserted the
```
CONFIG_HEADER='$(CONFIG_HEADER)'
```
line just above `built_programs=sed;` which explains why it worked for
him originally

[1] b8f98f7dc363 ("tests: export CONFIG_HEADER to test scripts")
[2] https://debbugs.gnu.org/cgi/bugreport.cgi?bug=36150#16
---
 testsuite/local.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/testsuite/local.mk b/testsuite/local.mk
index 13e6d004717e..2455af691b86 100644
--- a/testsuite/local.mk
+++ b/testsuite/local.mk
@@ -160,7 +160,7 @@ TESTS_ENVIRONMENT =                         \
   abs_top_builddir='$(abs_top_builddir)'       \
   abs_top_srcdir='$(abs_top_srcdir)'           \
   abs_srcdir='$(abs_srcdir)'                   \
-  built_programs=sed;                          \
+  built_programs=sed                           \
   srcdir='$(srcdir)'                           \
   top_srcdir='$(top_srcdir)'                   \
   CC='$(CC)'                                   \
-- 
2.37.3