Fix use of "check out"

Author: Martchus

README.md

@@ -81,7 +81,7 @@ These build instructions apply to `c++utilities` but also to my other projects u
     * libstdc++ or Boost.Iostreams for `NativeFileStream` (optional, use `USE_NATIVE_FILE_BUFFER=OFF` to disable)
     * Boost.Process for `execApp()` test helper under Windows (optional, use `USE_BOOST_PROCESS=OFF` to disable)
     * libarchive (optional, for archiving utilities only, use `USE_LIBARCHIVE=ON` to enable)
-* My other projects have further dependencies such as Qt. Checkout the README of these
+* My other projects have further dependencies such as Qt. Check out the README of these
   projects for further details.
 
 ### How to build
@@ -137,7 +137,7 @@ instructions for building on Windows.
     * The specified icon themes need to be installed in the usual location. Otherwise, use e.g.
       `BUILTIN_ICON_THEMES_SEARCH_PATH=D:/programming/misc/breeze-icons/usr/share/icons` to specify the
       search path.
-* For more details, checkout the documentation about build variables (in the
+* For more details, check out the documentation about build variables (in the
   [directory `doc`](https://github.com/Martchus/cpp-utilities/blob/master/doc/buildvariables.md) and
   in the Doxygen version accessible under "Related Pages").
 * The repository [PKGBUILDs](https://github.com/Martchus/PKGBUILDs) contains build scripts for GNU/Linux,
@@ -272,7 +272,7 @@ Syncthing Tray natively on the development host thanks to the cross-platform nat
 I recommended building for Android under Arch Linux (or an Arch Linux container, see last paragraphs of this
 section) using `android-*` packages found on the AUR and my
 [binary repository](https://martchus.dyn.f3l.de/repo/arch/ownstuff). The commands in this section assume this
-kind of build environment. For building on Windows, checkout the section
+kind of build environment. For building on Windows, check out the section
 "[Building under Windows for Android](#building-under-windows-for-android)" below.
 
 ---
@@ -608,7 +608,7 @@ cmake --build --preset win-android # or win-android-official-qt
 
 ### Packaging
 The repositories mentioned below contain packages for `c++utilities` itself but also for my other projects.
-For a more comprehensive list of repositories providing my other projects such as Syncthing Tray, checkout
+For a more comprehensive list of repositories providing my other projects such as Syncthing Tray, check out
 the README of those projects instead.
 
 #### Arch Linux package
@@ -626,7 +626,7 @@ There is also a [sub project](https://build.opensuse.org/project/show/home:mkitt
 from the Git master branch.
 
 #### Gentoo
-Checkout [Case_Of's overlay](https://codeberg.org/Case_Of/gentoo-overlay)
+Check out [Case_Of's overlay](https://codeberg.org/Case_Of/gentoo-overlay)
 or [perfect7gentleman's overlay](https://gitlab.com/Perfect_Gentleman/PG_Overlay).
 
 ## Copyright notice and license

doc/buildvariables.md

@@ -142,7 +142,7 @@ using the CMake functions
 and
 [`find_package`](https://cmake.org/cmake/help/latest/command/find_package.html).
 The behaviour of those functions can be controlled by setting some variables, eg.
-using a toolchain file. Checkout the CMake documentation for this.
+using a toolchain file. Check out the CMake documentation for this.
 
 If the detection does not work as expected or a library from a non-standard
 location should be used one can also just pass the library path directly by specifying
@@ -337,7 +337,7 @@ Since those modules make use of the variables explained above, the modules must
 be included *after* setting those variables. The inclusion order of the modules
 matters as well.
 
-For an example, checkout the project file of c++utilities itself. The project
+For an example, check out the project file of c++utilities itself. The project
 files of [Syncthing Tray](https://github.com/Martchus/syncthingtray) should
 cover everything (library, plugin, application, tests, desktop file, Qt
 resources and translations, ...).

io/path.h

@@ -91,7 +91,7 @@ inline
 #if !defined(CPP_UTILITIES_NO_ICONV) || !defined(PLATFORM_WINDOWS)
 /*!
  * \brief Returns \a path as UTF-8 string or string view.
- * \sa This is the opposite of makeNativePath() so checkout remarks of that function for details.
+ * \sa This is the opposite of makeNativePath() so check out remarks of that function for details.
  */
 inline
 #ifdef PLATFORM_WINDOWS

misc/signingkeys.h

@@ -9,9 +9,9 @@ namespace CppUtilities {
 /*!
  * \brief Contains signing keys for verifying releases via OpenSSL or stsigtool.
  * \remarks
- * - Checkout the header file `verification.h` which contains the function verifySignature() for
+ * - Check out the header file `verification.h` which contains the function verifySignature() for
  *   verification with OpenSSL.
- * - Checkout the Syncthing library contained in Syncthing Tray for verification with stsigtool.
+ * - Check out the Syncthing library contained in Syncthing Tray for verification with stsigtool.
  * - The arrays may contain more than one key, e.g. when rotatiung keys and an old key is in progress
  *   of being phased out.
  * - The concrete type of the contained key variables will change when the number of keys changes.

tests/testutils.cpp

@@ -274,7 +274,7 @@ std::string TestApplication::testFilePath(const std::string &relativeTestFilePat
 /*!
  * \brief Returns the full path of the test directory with the specified \a relativeTestDirPath.
  *
- * This is the same as TestApplication::testFilePath() but for directories. Checkout the documentation of
+ * This is the same as TestApplication::testFilePath() but for directories. Check out the documentation of
  * TestApplication::testFilePath() for details about the lookup.
  */
 std::string TestApplication::testDirPath(const std::string &relativeTestDirPath) const