Make errors and warnings a bit more obvious.

src/scripts/common.sh

Index: src/scripts/common.sh
diff --git a/src/scripts/common.sh b/src/scripts/common.sh
index 13888e37b35f46f35c2752d1ad6837028aa9dd2f..e276215ae0aff1dab9992dd6af69193e24cad4c5 100644
--- a/src/scripts/common.sh
+++ b/src/scripts/common.sh
@@ -280,13 +280,15 @@ function check_flags_only_and_allow_null_arg {
 
 V_RED="\e[31m"
 V_YELLOW="\e[33m"
+V_BOLD_RED="\e[1;31m"
+V_BOLD_YELLOW="\e[1;33m"
 
 function warn {
-  echo -e "${V_YELLOW}Warning..: $1${V_VIDOFF}"
+  echo -e "${V_BOLD_YELLOW}WARNING: $1${V_VIDOFF}"
 }
 
 function error {
-  echo -e "${V_RED}Error....: $1${V_VIDOFF}"
+  echo -e    "${V_BOLD_RED}ERROR  : $1${V_VIDOFF}"
 }
 
 function die {