Rename occurences Libusb -> LibUsb

tests/meson.build

@@ -34,7 +34,7 @@ test_sources = [
     '../src/PtouchPrint.cpp',
 
     # Source files under test - USB
-    '../src/libusbwrap/LibusbWrapper.cpp',
+    '../src/libusbwrap/LibUsbWrapper.cpp',
     '../src/libusbwrap/UsbDevice.cpp',
     '../src/libusbwrap/UsbDeviceFactory.cpp',
 ]
@@ -44,7 +44,7 @@ test_exe = executable(
     sources: test_sources,
     include_directories: incdir,
     dependencies: [
-        gmock_dep,  # GMock includes GTest
+        gmock_dep, # GMock includes GTest
         usb_dep,
         log_dep,
         pangocairo_dep,
@@ -53,4 +53,4 @@ test_exe = executable(
 )
 
 # Single test that runs all test suites
-test('all_tests', test_exe)
+test('all_tests', test_exe)