feat(changelog): print BREAKING CHANGE messages in a prettier way

tools/changelog.sh

@@ -181,6 +181,12 @@ function display-release {
     return
   fi
 
+  # Get length of longest scope for padding
+  local max_scope=0
+  for hash in ${(k)scopes}; do
+    max_scope=$(( max_scope < ${#scopes[$hash]} ? ${#scopes[$hash]} : max_scope ))
+  done
+
   ##* Formatting functions
 
   # Format the hash according to output format
@@ -220,18 +226,13 @@ function display-release {
     #* Uses $scopes (A) and $hash from outer scope
     local scope="${1:-${scopes[$hash]}}"
 
-    # Get length of longest scope for padding
-    local max_scope=0 padding=0
-    for hash in ${(k)scopes}; do
-      max_scope=$(( max_scope < ${#scopes[$hash]} ? ${#scopes[$hash]} : max_scope ))
-    done
-
     # If no scopes, exit the function
     if [[ $max_scope -eq 0 ]]; then
       return
     fi
 
     # Get how much padding is required for this scope
+    local padding=0
     padding=$(( max_scope < ${#scope} ? 0 : max_scope - ${#scope} ))
     padding="${(r:$padding:: :):-}"
 
@@ -290,11 +291,15 @@ function display-release {
     md) fmt:header "BREAKING CHANGES ⚠" 3 ;;
     esac
 
-    local hash subject
+    local hash message
+    local wrap_width=$(( (COLUMNS < 100 ? COLUMNS : 100) - 3 ))
     for hash message in ${(kv)breaking}; do
-      echo " - $(fmt:hash) $(fmt:scope)$(fmt:subject "${message}")"
-    done | sort
-    echo
+      # Format the BREAKING CHANGE message by word-wrapping it at maximum 100 characters
+      # (use $COLUMNS if smaller than 100), and adding a 3-space left padding.
+      message="$(fmt -w $wrap_width <<< "$message" | sed 's/^/   /')"
+      # Display hash and scope first, and then the full message with newline separators
+      echo " - $(fmt:hash) $(fmt:scope)\n\n$(fmt:subject "$message")\n"
+    done
   }
 
   function display:type {