fix(zkvms_guest_io): Print a string above the command log

Thus, if a user sees "Command log" in their output, they'll be able to
easily find where in the codebase the log is outputted.

1 files changed, 1 insertions, 0 deletions

diff --git a/zkvms_guest_io/src/main.rs b/zkvms_guest_io/src/main.rs
index 4dfd1ae..e44245e 100644
--- a/zkvms_guest_io/src/main.rs
+++ b/zkvms_guest_io/src/main.rs
@@ -193,6 +193,7 @@ fn main() {
             if get_runexec_value(&stdout, "returnvalue", '\n') != "0" {
                 run[operation] = Null;
                 if let Some(log) = read_to_string(COMMAND_LOG_PATH).ok() {
+                    println!("Command log:");
                     println!("{log}");
                 }
                 continue;