Some lingering cleanup after the initial import

thirdparty/KWSys/CMakeLists.txt

 set(KWSYS_NAMESPACE adios2sys)
-set(KWSYS_USE_DynamicLoader 1)
+set(KWSYS_USE_DynamicLoader ON)
+set(KWSYS_BUILD_SHARED OFF)
 
 add_subdirectory(adios2sys)

thirdparty/KWSys/adios2sys/.clang-format

+---
+# This configuration requires clang-format 3.8 or higher.
+BasedOnStyle: Mozilla
+AlignOperands: false
+AlwaysBreakAfterReturnType: None
+AlwaysBreakAfterDefinitionReturnType: None
+ColumnLimit: 79
+Standard: Cpp03
+...

thirdparty/KWSys/adios2sys/.gitattributes

-.git*            export-ignore
-.gitattributes  -export-ignore
-.hooks*          export-ignore
-
-# Custom attribute to mark sources as using our C code style.
-[attr]our-c-style  whitespace=tab-in-indent  format.clang-format
-
-/GitSetup        export-ignore
-/*.sh            export-ignore eol=lf
-/*.bash          export-ignore eol=lf
-/.clang-format   export-ignore
-
-*.c              our-c-style
-*.c.in           our-c-style
-*.cxx            our-c-style
-*.h              our-c-style
-*.h.in           our-c-style
-*.hxx            our-c-style
-*.hxx.in         our-c-style
-
-*.cmake          whitespace=tab-in-indent
-*.rst            whitespace=tab-in-indent conflict-marker-size=79
-*.txt            whitespace=tab-in-indent