Merge pull request #599 from Arcoth/patch-2

[dcl.type.cv] "program behavior is undefined" -> "behavior is undefined"

Author: zygoloid

source/declarations.tex

@@ -1181,7 +1181,7 @@
 implementation-defined.
 If an attempt is made to refer to an object defined with a
 volatile-qualified type through the use of a glvalue with a
-non-volatile-qualified type, the program behavior is undefined.
+non-volatile-qualified type, the behavior is undefined.
 
 \pnum
 \indextext{type~specifier!\idxcode{volatile}}%