[lib] Fix uses of "clause" (#4104)

Author: JohelEGP

source/containers.tex

@@ -309,7 +309,7 @@
 \tcode{const_iterator} type referring to the same element with no change in semantics.
 
 \pnum
-Unless otherwise specified, all containers defined in this clause obtain memory
+Unless otherwise specified, all containers defined in this Clause obtain memory
 using an allocator (see~\ref{allocator.requirements}).
 \begin{note}
 In particular, containers and iterators do not store references

source/iostreams.tex

@@ -39,7 +39,7 @@
 \pnum
 \begin{note}
 \fref{iostreams.streampos} illustrates relationships among various types
-described in this clause. A line from \textbf{A} to \textbf{B} indicates that \textbf{A}
+described in this Clause. A line from \textbf{A} to \textbf{B} indicates that \textbf{A}
 is an alias (e.g., a typedef) for \textbf{B} or that \textbf{A} is defined in terms of
 \textbf{B}.
 

source/iterators.tex

@@ -4904,7 +4904,7 @@
 
 \begin{itemdescr}
 \pnum
-The expression in the requires clause is equivalent to:
+The expression in the \grammarterm{requires-clause} is equivalent to:
 \begin{codeblock}
 @\libconcept{indirectly_readable}@<const I> &&
 (requires(const I& i) { i.operator->(); } ||

source/numerics.tex

@@ -9873,7 +9873,7 @@
 for which:
 \begin{itemize}
   \item
-  the function description's \returns clause
+  the function description's \returns element
   explicitly specifies a domain
   and those argument values fall
   outside the specified domain,

source/threads.tex

@@ -48,7 +48,7 @@
 in~\ref{res.on.exception.handling}.
 
 \begin{example}
-Consider a function in this clause that is specified to throw exceptions of type
+Consider a function in this Clause that is specified to throw exceptions of type
 \tcode{system_error} and specifies error conditions that include
 \tcode{operation_not_permitted} for a thread that does not have the privilege to
 perform the operation. Assume that, during the execution of this function, an \tcode{errno}
@@ -5954,7 +5954,7 @@
 \defnx{shared state}{future!shared state} consists of some state information and some (possibly not
 yet evaluated) \term{result}, which can be a (possibly void) value or an exception.
 \begin{note}
-Futures, promises, and tasks defined in this clause reference such shared state.
+Futures, promises, and tasks defined in this Clause reference such shared state.
 \end{note}
 
 \pnum

source/time.tex

@@ -8754,7 +8754,7 @@
 \pnum
 \throws
 If a \tcode{const time_zone*} cannot be found
-as described in the \returns clause,
+as described in the \returns element,
 throws a \tcode{runtime_error}.
 \begin{note}
 On non-exceptional return, the return value is always a pointer to a valid \tcode{time_zone}.