[NFC] Strip trailing whitespace from libc++
diff --git a/libcxx/include/support/solaris/wchar.h b/libcxx/include/support/solaris/wchar.h
index 9dc9ac3..f01fd74 100644
--- a/libcxx/include/support/solaris/wchar.h
+++ b/libcxx/include/support/solaris/wchar.h
@@ -26,7 +26,7 @@
 #define wctype sun_wctype
 #define _WCHAR_T 1
 #include_next "wchar.h"
-#undef iswalpha 
+#undef iswalpha
 #undef iswupper
 #undef iswlower
 #undef iswdigit