add - in comment for consistency

Author: purnesh42H

scripts/vet.sh

@@ -67,7 +67,7 @@ not git grep "\"github.com/golang/protobuf/*" -- "*.go" ':(exclude)reflection/te
 # - Ensure all usages of grpc_testing package are renamed when importing.
 not git grep "\(import \|^\s*\)\"google.golang.org/grpc/interop/grpc_testing" -- "*.go"
 
-# Ensure that no trailing spaces are found.
+# - Ensure that no trailing spaces are found.
 not git grep '[[:blank:]]$'
 
 # - Ensure all xds proto imports are renamed to *pb or *grpc.