MLBEDSW-4034: New Scheduler Size or Performance Optimisation

 - Merged dev/scheduler at 83639f90e8c828f70de6e29142355a940224959b

Signed-off-by: Tim Hall <tim.hall@arm.com>
Change-Id: I0050529d4b42da93768c7264296434dd877fb5b4
diff --git a/ethosu/vela/errors.py b/ethosu/vela/errors.py
index 918ca0a..9553c80 100644
--- a/ethosu/vela/errors.py
+++ b/ethosu/vela/errors.py
@@ -21,7 +21,7 @@
     """Base class for vela exceptions"""
 
     def __init__(self, data):
-        self.data = f"Error! {data}"
+        self.data = f"Error: {data}"
         self.error_msg = data
 
     def __str__(self):