refactor: . Extract variable taskWasNotOnLastLine

Author: claremacrae

src/Commands/ToggleDone.ts

@@ -38,12 +38,13 @@ export const toggleDone = (checking: boolean, editor: Editor, view: MarkdownView
     const insertion = toggleLine(line, path);
 
     const replacementTextIsNonEmpty = insertion.text.length > 0;
+    const taskWasNotOnLastLine = lineNumber < editor.lineCount() - 1;
     if (replacementTextIsNonEmpty) {
         editor.setLine(lineNumber, insertion.text);
     } else {
         // https://github.com/obsidian-tasks-group/obsidian-tasks/issues/3342
         // If insertion.text is empty, delete the line instead, so we don't leave a trailing end-of-line character around.
-        if (lineNumber < editor.lineCount() - 1) {
+        if (taskWasNotOnLastLine) {
             const from = { line: lineNumber, ch: 0 };
             const to = { line: lineNumber + 1, ch: 0 };
             // console.log(`Deleting line+EOL "${editor.getRange(from, to)}", because insertion.text is empty.`);