test: flush stdout after forking

meson test was not capturing the intended output from the child
process; force a flush to ensure it reaches the test log.

Signed-off-by: John Levon <john.levon@nutanix.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>

diff --git a/app/test/process.h b/app/test/process.h
index a09a088..0ed91a9 100644 (file)
--- a/app/test/process.h
+++ b/app/test/process.h
@@ -110,6 +110,7 @@ process_dup(const char *const argv[], int numargs, const char *env_value)
                for (i = 0; i < num; i++)
                        printf("'%s' ", argv_cpy[i]);
                printf("\n");
+               fflush(stdout);
 
                /* set the environment variable */
                if (setenv(RECURSIVE_ENV_VAR, env_value, 1) != 0)