fix coding-style as per clang-format

[pboettch]

Your coding-style/whitespaces/indent were still not fixed after your change. I used the following clang-format-file:

---
BasedOnStyle:  LLVM
AccessModifierOffset: -2
AllowShortFunctionsOnASingleLine: Inline
BreakBeforeBraces: Custom
BraceWrapping: {
    AfterClass: 'false'
    AfterEnum: 'false'
    AfterFunction: 'true'
    AfterNamespace: 'false'
    AfterStruct: 'false'
    AfterUnion: 'false'
    BeforeCatch: 'false'
    BeforeElse: 'false'
}
ColumnLimit:     0
ConstructorInitializerAllOnOneLineOrOnePerLine: true
IndentWidth:     4
ObjCBlockIndentWidth: 4
SpaceAfterCStyleCast: true
TabWidth:        4
UseTab:          Never
SortIncludes:    'false'
SpaceAfterCStyleCast: 'false'
...

and

git diff -U0 HEAD^ | clang-format-diff -p1 -i

to fix it and then I created a commit (except a few lines which I excluded).