cmGeneratedFileStream: clang-tidy applied to remove redundant ``c_str`` calls

After changing the ``cmGeneratedFileStream`` methods to accept
``std::string const&`` instead of ``const char*`` we don't
need to call ``std::string::c_str`` anymore when passing
a ``std::string`` to a ``cmGeneratedFileStream`` method.

This patch removes all redundant ``std::string::c_str``
calls when passing a string to a ``cmGeneratedFileStream`` method.

It was generated by building CMake with clang-tidy enabled using
the following options:

-DCMAKE_CXX_CLANG_TIDY=/usr/bin/clang-tidy-4.0;-checks=-*,readability-redundant-string-cstr;-fix;-fix-errors

1 files changed, 3 insertions, 3 deletions

diff --git a/Source/cmGeneratedFileStream.cxx b/Source/cmGeneratedFileStream.cxx
index 95132e7..186ec8c 100644
--- a/Source/cmGeneratedFileStream.cxx
+++ b/Source/cmGeneratedFileStream.cxx
@@ -168,12 +168,12 @@ bool cmGeneratedFileStreamBase::Close()
     // destination atomically.
     if (this->Compress) {
       std::string gzname = this->TempName + ".temp.gz";
-      if (this->CompressFile(this->TempName.c_str(), gzname.c_str())) {
-        this->RenameFile(gzname.c_str(), resname.c_str());
+      if (this->CompressFile(this->TempName, gzname)) {
+        this->RenameFile(gzname, resname);
       }
       cmSystemTools::RemoveFile(gzname);
     } else {
-      this->RenameFile(this->TempName.c_str(), resname.c_str());
+      this->RenameFile(this->TempName, resname);
     }
 
     replaced = true;