Re-style fdlibm to conform to jerry guidelines

* First re-style was done automatically by indent to minimize the
  chance of errors during rewrite.

* Manual changes were applied to non-critical places only (comments
  and spaces):
  * Replaced all tabs with spaces.
  * Fixed tab stops in formulae in function comments.
    (Note: ASCII art for math formulae (especially for super- and
    subscripts) is a terrible idea.)
  * Unified the style of function comments.
  * Moved some in-code comments to their right places, which indent
    couldn't handle.
  * Added spaces to formulae of in-code comments to make them more
    readable.
  * Added braces mandated by jerry style guidelines.
  * Added parentheses to multiline #ifdef.

JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu

third-party/fdlibm/include/fdlibm-math.h

@@ -52,29 +52,29 @@ extern "C"
 #define M_2_SQRTPI 1.1283791670955125738961589031215452
 
 // Trigonometric functions
-double cos(double);
-double sin(double);
-double tan(double);
-double acos(double);
-double asin(double);
-double atan(double);
-double atan2(double, double);
+double cos (double);
+double sin (double);
+double tan (double);
+double acos (double);
+double asin (double);
+double atan (double);
+double atan2 (double, double);
 
 // Exponential and logarithmic functions
-double exp(double);
-double log(double);
+double exp (double);
+double log (double);
 
 // Power functions
-double pow(double, double);
-double sqrt(double);
+double pow (double, double);
+double sqrt (double);
 
 // Rounding and remainder functions
-double ceil(double);
-double floor(double);
+double ceil (double);
+double floor (double);
 
 // Other functions
-double fabs(double);
-double fmod(double, double);
+double fabs (double);
+double fmod (double, double);
 
 #ifdef __cplusplus
 }