Fix incorrect header guard macro, as awesomely detected by clang.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14064 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/coregrind/m_initimg/priv_initimg_pathscan.h b/coregrind/m_initimg/priv_initimg_pathscan.h
index deb0158..22fc42b 100644
--- a/coregrind/m_initimg/priv_initimg_pathscan.h
+++ b/coregrind/m_initimg/priv_initimg_pathscan.h
@@ -30,10 +30,10 @@
 */
 
 #ifndef __PRIV_INITIMG_PATHSCAN_H
-#define __PRIV_INITIMG_PATHSCAN_
+#define __PRIV_INITIMG_PATHSCAN_H
 
 #include "pub_core_basics.h"   // HChar
 
 extern const HChar* ML_(find_executable) ( const HChar* exec );
 
-#endif
+#endif // ndef __PRIV_INITIMG_PATHSCAN_H