fix style

Author: shadchin

configure

@@ -3022,11 +3022,13 @@ AC_HEADER_DIRENT
 AC_HEADER_MAJOR
 
 # On Linux, stropts.h may be empty
-AC_CHECK_DECL([I_PUSH], [AC_DEFINE([HAVE_STROPTS_H], [1], [Define to 1 if you have the <stropts.h> header file.])], [], [
-#ifdef HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-#include <stropts.h>
+AC_CHECK_DECL([I_PUSH], [
+  AC_DEFINE([HAVE_STROPTS_H], [1],
+    [Define to 1 if you have the <stropts.h> header file.])], [], [
+    #ifdef HAVE_SYS_TYPES_H
+    #  include <sys/types.h>
+    #endif
+    #include <stropts.h>
 ])
 
 # bluetooth/bluetooth.h has been known to not compile with -std=c99.