Repair the non-functional false-assertion test

This test has apparently been returning nonsense since the
false-assertion example was renamed in 6f4ddfd.

The test design (nested invocation of fpm) remains horribly fragile
for multiple fundamental reasons, but at least it's once again working
as intended (at least on gfortran 14).

test/run-false-assertion.sh

@@ -1,3 +1,3 @@
 #!/bin/bash
-output=$(fpm run --example false_assertion --compiler flang-new --flag '-mmlir -allow-assumed-rank -O3' > /dev/null 2>&1)
+output=$(fpm run --example false-assertion --compiler flang-new --flag '-mmlir -allow-assumed-rank -O3 -DASSERTIONS' > /dev/null 2>&1)
 echo $?

test/test-assert-subroutine-error-termination.F90

@@ -5,22 +5,25 @@ program test_assert_subroutine_error_termination
 
   integer exit_status
 
-  ! TODO: add '--profile release' if used in the 'fpm test' invocation that causes the program
-  ! ../example/test-assert-subroutine-error-termination.F90 to excute this example program.
-
   print *
   print *,"The assert subroutine"
+
+  ! TODO: The following is a HORRIBLY fragile test. 
+  ! Specifically, it encodes a bunch of compiler-specific flags into an fpm command, 
+  ! and if fpm fails for any unrelated reason (broken command, compile error, I/O error, etc)
+  ! we will mistakenly interpret that as a passing test!
+
   call execute_command_line( &
 #ifdef __GFORTRAN__
-    command = "fpm run --example false_assertion > /dev/null 2>&1", &
+    command = "fpm run --example false-assertion --profile release --flag '-DASSERTIONS' > /dev/null 2>&1", &
 #elif NAGFOR
-    command = "fpm run --example false_assertion --compiler nagfor --flag -fpp > /dev/null 2>&1", &
+    command = "fpm run --example false-assertion --compiler nagfor --flag '-DASSERTIONS -fpp' > /dev/null 2>&1", &
 #elif __flang__
     command = "./test/run-false-assertion.sh | fpm run --example check-exit-status", &
 #elif __INTEL_COMPILER
-    command = "fpm run --example false_assertion --compiler ifx --flag -O3 > /dev/null 2>&1", &
+    command = "fpm run --example false-assertion --compiler ifx --flag '-DASSERTIONS -O3' > /dev/null 2>&1", &
 #elif __CRAYFTN
-    command = "fpm run --example false_assertion --compiler crayftn.sh > /dev/null 2>&1", &
+    command = "fpm run --example false-assertion --profile release --compiler crayftn.sh --flag '-DASSERTIONS' > /dev/null 2>&1", &
 #else
     command = "echo 'example/false_assertion.F90: unsupported compiler' && exit 1", &
 #endif