[fusl] clang-format fusl

fusl/src/math/copysignl.c

 #include "libm.h"
 
 #if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
-long double copysignl(long double x, long double y)
-{
-        return copysign(x, y);
+long double copysignl(long double x, long double y) {
+  return copysign(x, y);
 }
 #elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
-long double copysignl(long double x, long double y)
-{
-        union ldshape ux = {x}, uy = {y};
-        ux.i.se &= 0x7fff;
-        ux.i.se |= uy.i.se & 0x8000;
-        return ux.f;
+long double copysignl(long double x, long double y) {
+  union ldshape ux = {x}, uy = {y};
+  ux.i.se &= 0x7fff;
+  ux.i.se |= uy.i.se & 0x8000;
+  return ux.f;
 }
 #endif