[facet.num.get.virtuals] Replace the uses of "local variable"

... with "variable with automatic storage duration"

Author: frederick-vs-ja

source/text.tex

@@ -2583,7 +2583,7 @@
 
 \begin{description}
 \stage{1}
-The function initializes local variables via
+The function initializes variables with automatic storage duration via
 \begin{codeblock}
 fmtflags flags = str.flags();
 fmtflags basefield = (flags & ios_base::basefield);
@@ -2632,7 +2632,7 @@
 \stage{2}
 If \tcode{in == end} then stage 2 terminates.
 Otherwise a \tcode{charT} is taken from \tcode{in} and
-local variables are initialized as if by
+variables with automatic storage duration are initialized as if by
 \begin{codeblock}
 char_type ct = *in;
 char c = src[find(atoms, atoms + sizeof(src) - 1, ct) - atoms];