[fusl] clang-format fusl

fusl/src/math/frexp.c

 #include <math.h>
 #include <stdint.h>
 
-double frexp(double x, int *e)
-{
-        union { double d; uint64_t i; } y = { x };
-        int ee = y.i>>52 & 0x7ff;
+double frexp(double x, int* e) {
+  union {
+    double d;
+    uint64_t i;
+  } y = {x};
+  int ee = y.i >> 52 & 0x7ff;
 
-        if (!ee) {
-                if (x) {
-                        x = frexp(x*0x1p64, e);
-                        *e -= 64;
-                } else *e = 0;
-                return x;
-        } else if (ee == 0x7ff) {
-                return x;
-        }
+  if (!ee) {
+    if (x) {
+      x = frexp(x * 0x1p64, e);
+      *e -= 64;
+    } else
+      *e = 0;
+    return x;
+  } else if (ee == 0x7ff) {
+    return x;
+  }
 
-        *e = ee - 0x3fe;
-        y.i &= 0x800fffffffffffffull;
-        y.i |= 0x3fe0000000000000ull;
-        return y.d;
+  *e = ee - 0x3fe;
+  y.i &= 0x800fffffffffffffull;
+  y.i |= 0x3fe0000000000000ull;
+  return y.d;
 }