rtla: Use strdup() to simplify code

The actions_add_trace_output() and actions_add_shell() functions were
using calloc() followed by strcpy() to allocate and copy a string.
This can be simplified by using strdup(), which allocates memory and
copies the string in a single step.

Replace the calloc() and strcpy() calls with strdup(), making the
code more concise and readable.

Signed-off-by: Wander Lairson Costa <wander@redhat.com>
Link: https://lore.kernel.org/r/20260309195040.1019085-3-wander@redhat.com
Signed-off-by: Tomas Glozar <tglozar@redhat.com>

Author: walac

tools/tracing/rtla/src/actions.c

@@ -69,8 +69,7 @@ actions_add_trace_output(struct actions *self, const char *trace_output)
 
 	self->present[ACTION_TRACE_OUTPUT] = true;
 	action->type = ACTION_TRACE_OUTPUT;
-	action->trace_output = calloc_fatal(strlen(trace_output) + 1, sizeof(char));
-	strcpy(action->trace_output, trace_output);
+	action->trace_output = strdup_fatal(trace_output);
 }
 
 /*
@@ -97,8 +96,7 @@ actions_add_shell(struct actions *self, const char *command)
 
 	self->present[ACTION_SHELL] = true;
 	action->type = ACTION_SHELL;
-	action->command = calloc_fatal(strlen(command) + 1, sizeof(char));
-	strcpy(action->command, command);
+	action->command = strdup_fatal(command);
 }
 
 /*