Revise C++ coding style using clang-format

Run the `Utilities/Scripts/clang-format.bash` script to update
all our C++ code to a new style defined by `.clang-format`.
Use `clang-format` version 3.8.

* If you reached this commit for a line in `git blame`, re-run the blame
  operation starting at the parent of this commit to see older history
  for the content.

* See the parent commit for instructions to rebase a change across this
  style transition commit.

1 files changed, 16 insertions, 23 deletions

diff --git a/Source/cmUnsetCommand.cxx b/Source/cmUnsetCommand.cxx
index 053cdfc..c04c44a 100644
--- a/Source/cmUnsetCommand.cxx
+++ b/Source/cmUnsetCommand.cxx
@@ -13,53 +13,46 @@
 
 // cmUnsetCommand
 bool cmUnsetCommand::InitialPass(std::vector<std::string> const& args,
-                                 cmExecutionStatus &)
+                                 cmExecutionStatus&)
 {
-  if(args.size() < 1 || args.size() > 2)
-    {
+  if (args.size() < 1 || args.size() > 2) {
     this->SetError("called with incorrect number of arguments");
     return false;
-    }
+  }
 
   const char* variable = args[0].c_str();
 
   // unset(ENV{VAR})
-  if (cmHasLiteralPrefix(variable, "ENV{") && strlen(variable) > 5)
-    {
+  if (cmHasLiteralPrefix(variable, "ENV{") && strlen(variable) > 5) {
     // what is the variable name
-    char *envVarName = new char [strlen(variable)];
-    strncpy(envVarName,variable+4,strlen(variable)-5);
-    envVarName[strlen(variable)-5] = '\0';
+    char* envVarName = new char[strlen(variable)];
+    strncpy(envVarName, variable + 4, strlen(variable) - 5);
+    envVarName[strlen(variable) - 5] = '\0';
 
 #ifdef CMAKE_BUILD_WITH_CMAKE
     cmSystemTools::UnsetEnv(envVarName);
 #endif
     delete[] envVarName;
     return true;
-    }
+  }
   // unset(VAR)
-  else if (args.size() == 1)
-    {
+  else if (args.size() == 1) {
     this->Makefile->RemoveDefinition(variable);
     return true;
-    }
+  }
   // unset(VAR CACHE)
-  else if ((args.size() == 2) && (args[1] == "CACHE"))
-    {
+  else if ((args.size() == 2) && (args[1] == "CACHE")) {
     this->Makefile->RemoveCacheDefinition(variable);
     return true;
-    }
+  }
   // unset(VAR PARENT_SCOPE)
-  else if ((args.size() == 2) && (args[1] == "PARENT_SCOPE"))
-    {
+  else if ((args.size() == 2) && (args[1] == "PARENT_SCOPE")) {
     this->Makefile->RaiseScope(variable, 0);
     return true;
-    }
+  }
   // ERROR: second argument isn't CACHE or PARENT_SCOPE
-  else
-    {
+  else {
     this->SetError("called with an invalid second argument");
     return false;
-    }
+  }
 }
-