Help: fixed typos in PCH / Unity Build doc

+ typos in source code

Help/prop_tgt/PRECOMPILE_HEADERS_REUSE_FROM.rst

@@ -1,7 +1,7 @@
 PRECOMPILE_HEADERS_REUSE_FROM
 -----------------------------
 
-Target from which to reuse the precomipled headers build artifact.
+Target from which to reuse the precompiled headers build artifact.
 
 See the second signature of :command:`target_precompile_headers` command
 for more detailed information.

Help/prop_tgt/UNITY_BUILD.rst

@@ -31,7 +31,7 @@ ODR (One definition rule) errors
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 Since multiple source files are included into one source file,
-it can lead to ODR errors. This section contains properites
+it can lead to ODR errors. This section contains properties
 which help fixing these errors.
 
 The source files marked by :prop_sf:`GENERATED` will be skipped

Help/prop_tgt/UNITY_BUILD_BATCH_SIZE.rst

@@ -8,6 +8,6 @@ If the property is not set, CMake will use the value provided
 by :variable:`CMAKE_UNITY_BUILD_BATCH_SIZE`.
 
 By setting it to value `0` the generated unity source file will
-contain all the source files that would be otherwise be split
+contain all the source files that would otherwise be split
 into multiple batches. It is not recommended to do so, since it
 would affect performance.

Source/QtDialog/QCMake.cxx

@@ -257,14 +257,14 @@ void QCMake::setProperties(const QCMakePropertyList& newProps)
     }
   }
 
-  // remove some properites
+  // remove some properties
   foreach (QString const& s, toremove) {
     this->CMakeInstance->UnwatchUnusedCli(s.toLocal8Bit().data());
 
     state->RemoveCacheEntry(s.toLocal8Bit().data());
   }
 
-  // add some new properites
+  // add some new properties
   foreach (QCMakeProperty const& s, props) {
     this->CMakeInstance->WatchUnusedCli(s.Key.toLocal8Bit().data());