clang-format correction and typo (clang format likely not complete)

This was added some time ago, but I suspect largely unused.
Christoph pointed out of few contradictions to actual convention,
so that's fixed. But, I suspect it is largely incomplete.

.clang-format

@@ -1,7 +1,8 @@
 Language: Cpp
 IndentWidth: 4
+PointerAlignment: Left
 BreakBeforeBraces: Custom
-BraceWrapping: { AfterFunction: true, AfterControlStatement: true }
+BraceWrapping: { AfterFunction: true, AfterControlStatement: false }
 IndentCaseLabels: false
 ReflowComments: false
 ColumnLimit: 120

glslang/MachineIndependent/Intermediate.cpp

@@ -410,7 +410,7 @@ TIntermTyped* TIntermediate::addBuiltInFunctionCall(const TSourceLoc& loc, TOper
 //
 // This is the safe way to change the operator on an aggregate, as it
 // does lots of error checking and fixing.  Especially for establishing
-// a function call's operation on it's set of parameters.  Sequences
+// a function call's operation on its set of parameters.  Sequences
 // of instructions are also aggregates, but they just directly set
 // their operator to EOpSequence.
 //