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-rw-r--r--trace/control.c4
-rw-r--r--trace/control.h4
2 files changed, 4 insertions, 4 deletions
diff --git a/trace/control.c b/trace/control.c
index e40cfca775..43fb7868db 100644
--- a/trace/control.c
+++ b/trace/control.c
@@ -253,7 +253,7 @@ void trace_init_file(const char *file)
 #ifdef CONFIG_TRACE_SIMPLE
     st_set_trace_file(file);
 #elif defined CONFIG_TRACE_LOG
-    /* If both the simple and the log backends are enabled, "-trace file"
+    /* If both the simple and the log backends are enabled, "--trace file"
      * only applies to the simple backend; use "-D" for the log backend.
      */
     if (file) {
@@ -261,7 +261,7 @@ void trace_init_file(const char *file)
     }
 #else
     if (file) {
-        fprintf(stderr, "error: -trace file=...: "
+        fprintf(stderr, "error: --trace file=...: "
                 "option not supported by the selected tracing backends\n");
         exit(1);
     }
diff --git a/trace/control.h b/trace/control.h
index eb65c8e320..0716f90f45 100644
--- a/trace/control.h
+++ b/trace/control.h
@@ -193,7 +193,7 @@ void trace_event_set_vcpu_state_dynamic(CPUState *vcpu,
 /**
  * trace_init_backends:
  * @file:   Name of trace output file; may be NULL.
- *          Corresponds to commandline option "-trace file=...".
+ *          Corresponds to commandline option "--trace file=...".
  *
  * Initialize the tracing backend.
  *
@@ -204,7 +204,7 @@ bool trace_init_backends(void);
 /**
  * trace_init_file:
  * @file:   Name of trace output file; may be NULL.
- *          Corresponds to commandline option "-trace file=...".
+ *          Corresponds to commandline option "--trace file=...".
  *
  * Record the name of the output file for the tracing backend.
  * Exits if no selected backend does not support specifying the