fix(typo): Update set-envvars.sh

Update typo in `set-envvars.sh`.

Signed-off-by: Ryan Johnson <[email protected]>

set-envvars.sh

@@ -101,7 +101,7 @@ esac
 echo -e '\n> Set the default user account credentials.'
 read -r -p "Enter the username for the account: " build_username
 read -r -s -p "Enter the password for the account: " build_password
-echo # Needed for line breakd
+echo # Needed for line break.
 read -r -s -p "Enter the SHA-512 encrypted password for the account: " build_password_encrypted
 echo # Needed for line break.
 read -r -s -p "Enter the key for the account: " build_key
@@ -271,4 +271,4 @@ case $display_environmental_variables in
  *)
  echo -e "\n> Invalid input; skipping display of the environmental variables." 
  ;;
-esac
+esac