Fix typos found by codespell (#3011)

include/spdlog/sinks/qt_sinks.h

@@ -4,7 +4,7 @@
 #pragma once
 
 //
-// Custom sink for QPlainTextEdit or QTextEdit and its childs(QTextBrowser...
+// Custom sink for QPlainTextEdit or QTextEdit and its children (QTextBrowser...
 // etc) Building and using requires Qt library.
 //
 // Warning: the qt_sink won't be notified if the target widget is destroyed.
@@ -54,7 +54,7 @@ class qt_sink : public base_sink<Mutex> {
     std::string meta_method_;
 };
 
-// QT color sink to QTextEdit.
+// Qt color sink to QTextEdit.
 // Color location is determined by the sink log pattern like in the rest of spdlog sinks.
 // Colors can be modified if needed using sink->set_color(level, qtTextCharFormat).
 // max_lines is the maximum number of lines that the sink will hold before removing the oldest
@@ -273,7 +273,7 @@ inline std::shared_ptr<logger> qt_logger_st(const std::string &logger_name, QObj
     return Factory::template create<sinks::qt_sink_st>(logger_name, qt_object, meta_method);
 }
 
-// log to QTextEdit with colorize output
+// log to QTextEdit with colorized output
 template <typename Factory = spdlog::synchronous_factory>
 inline std::shared_ptr<logger> qt_color_logger_mt(const std::string &logger_name,
                                                   QTextEdit *qt_text_edit,

tests/test_file_helper.cpp

@@ -141,7 +141,7 @@ TEST_CASE("file_event_handlers", "[file_helper]") {
         helper.reopen(true);
         events.clear();
     }
-    // make sure that the file_helper destrcutor calls the close callbacks if needed
+    // make sure that the file_helper destructor calls the close callbacks if needed
     REQUIRE(events == std::vector<flags>{flags::before_close, flags::after_close});
     REQUIRE(file_contents(TEST_FILENAME) == "after_open\nbefore_close\n");
 }