Correctly format wrapped function call parameters in templated functions.

This fixes llvm.org/PR14846.

Before:
template <typename T>
void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(
        int aaaaaaaaaaaaaaaaa);

After:
template <typename T>
void aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(
    int aaaaaaaaaaaaaaaaa);

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171963 91177308-0d34-0410-b5e6-96231b3b80d8