[expr.prim.literal] Rephrase slightly to avoid 'which' sounding

restrictive.

Author: zygoloid

source/expressions.tex

@@ -1154,8 +1154,9 @@
 \pnum
 \indextext{literal}%
 \indextext{constant}%
-A \grammarterm{literal} is a primary expression,
-whose type is determined based on its form as specified in \ref{lex.literal}.
+A \grammarterm{literal} is a primary expression.
+The type of a \grammarterm{literal}
+is determined based on its form as specified in \ref{lex.literal}.
 A \grammarterm{string-literal} is an lvalue,
 a \grammarterm{user-defined-literal}
 has the same value category