Our error(3) implementation uses program_invocation_name, which is only
the command name, not the full path of the command.

--- elfutils-0.193/tests/run-stack-d-test.sh.old	2025-04-25 15:16:30.000000000 -0500
+++ elfutils-0.193/tests/run-stack-d-test.sh	2025-05-26 23:39:26.261946439 -0500
@@ -65,7 +65,7 @@
 if test "$elfutils_testrun" = "installed"; then
 STACKCMD=${bindir}/`program_transform stack`
 else
-STACKCMD=${abs_top_builddir}/src/stack
+STACKCMD=stack
 fi
 
 # Disable valgrind while dumping because of a bug unmapping libc.so.
--- elfutils-0.193/tests/run-stack-demangled-test.sh.old	2025-04-25 15:16:30.000000000 -0500
+++ elfutils-0.193/tests/run-stack-demangled-test.sh	2025-05-26 23:40:19.246278094 -0500
@@ -34,7 +34,7 @@
 if test "$elfutils_testrun" = "installed"; then
 STACKCMD=${bindir}/`program_transform stack`
 else
-STACKCMD=${abs_top_builddir}/src/stack
+STACKCMD=stack
 fi
 
 # Disable valgrind while dumping because of a bug unmapping libc.so.
--- elfutils-0.193/tests/run-stack-i-test.sh.old	2025-04-25 15:16:30.000000000 -0500
+++ elfutils-0.193/tests/run-stack-i-test.sh	2025-05-26 23:39:47.539670116 -0500
@@ -26,7 +26,7 @@
 if test "$elfutils_testrun" = "installed"; then
 STACKCMD=${bindir}/`program_transform stack`
 else
-STACKCMD=${abs_top_builddir}/src/stack
+STACKCMD=stack
 fi
 
 # Disable valgrind while dumping because of a bug unmapping libc.so.