refactor: remove '-e' parameter of sed

not necessary if there is only one script
https://unix.stackexchange.com/a/33159

utils/malware-domains.sh

@@ -14,7 +14,7 @@ cut -f 1 -d ':' | \
 # Remove www
 # Only matches domains that start with www
 # Not examplewww.com
-sed -e 's/^www\.//g' | \
+sed 's/^www\.//g' | \
 # Sort and remove duplicates
 sort -u | \
 # Exclude Umbrella Top 1M and well-known domains

utils/malware-url-top-domains.sh

@@ -14,7 +14,7 @@ cut -f 1- -d ':' | \
 # Remove www
 # Only matches domains that start with www
 # Not examplewww.com
-sed -e 's/^www\.//g' | \
+sed 's/^www\.//g' | \
 # Sort and remove duplicates
 sort -u | \
 # Parse URLs from popular domains only

utils/umbrella-top-1m.sh

@@ -15,7 +15,7 @@ grep -F '.' | \
 # Remove www
 # Only matches domains that start with www
 # Not examplewww.com
-sed -e 's/^www\.//g' | \
+sed 's/^www\.//g' | \
 # Remove duplicates
 sort -u > top-1m.txt
 

utils/urlhaus-top-domains.sh

@@ -14,7 +14,7 @@ cut -f 1 -d ':' | \
 # Remove www
 # Only matches domains that start with www
 # Not examplewww.com
-sed -e 's/^www\.//g' | \
+sed 's/^www\.//g' | \
 # Sort and remove duplicates
 sort -u | \
 # Exclude Umbrella Top 1M and well-known domains