Reduce noise in logs

InvenTree/build/migrations/0029_auto_20210601_1525.py

@@ -40,6 +40,7 @@ def assign_bom_items(apps, schema_editor):
         except BomItem.DoesNotExist:
             pass
 
+    if count_total > 0:
         print(f"Assigned BomItem for {count_valid}/{count_total} entries")
 
 

InvenTree/company/migrations/0026_auto_20201110_1011.py

@@ -71,6 +71,7 @@ def migrate_currencies(apps, schema_editor):
 
         count += 1
 
+    if count > 0:
         print(f"Updated {count} SupplierPriceBreak rows")
 
 def reverse_currencies(apps, schema_editor):

InvenTree/part/migrations/0056_auto_20201110_1125.py

@@ -71,6 +71,7 @@ def migrate_currencies(apps, schema_editor):
 
         count += 1
 
+    if count > 0:
         print(f"Updated {count} SupplierPriceBreak rows")
 
 def reverse_currencies(apps, schema_editor):