Typo in FE_ALLEXCEPT (MicrosoftDocs#310)

Should be `FE_ALL_EXCEPT`.

Author: gvanem

docs/c-runtime-library/reference/feclearexcept1.md

@@ -47,7 +47,7 @@ The **feclearexcept** function attempts to clear the floating point exception st
 |FE_INVALID|A domain error occurred in an earlier floating-point operation.|
 |FE_OVERFLOW|A range error occurred; an earlier floating-point operation result was too large to be represented.|
 |FE_UNDERFLOW|An earlier floating-point operation result was too small to be represented at full precision; a denormal value was created.|
-|FE_ALLEXCEPT|The bitwise OR of all supported floating-point exceptions.|
+|FE_ALL_EXCEPT|The bitwise OR of all supported floating-point exceptions.|
 
 The *excepts* argument may be zero, or the bitwise OR of one or more of the supported exception macros. The result of any other argument value is undefined.