[algorithms] Add missing full stops to inline Returns elements

Author: tkoeppe

source/algorithms.tex

@@ -3863,7 +3863,7 @@
 
 \begin{itemdescr}
 \pnum
-\returns \tcode{is_sorted_until(first, last) == last}
+\returns \tcode{is_sorted_until(first, last) == last}.
 \end{itemdescr}
 
 \indexlibrary{\idxcode{is_sorted}}%
@@ -3875,7 +3875,7 @@
 
 \begin{itemdescr}
 \pnum
-\returns \tcode{is_sorted_until(std::forward<ExecutionPolicy>(exec), first, last) == last}
+\returns \tcode{is_sorted_until(std::forward<ExecutionPolicy>(exec), first, last) == last}.
 \end{itemdescr}
 
 
@@ -3888,7 +3888,7 @@
 
 \begin{itemdescr}
 \pnum
-\returns \tcode{is_sorted_until(first, last, comp) == last}
+\returns \tcode{is_sorted_until(first, last, comp) == last}.
 \end{itemdescr}
 
 
@@ -5066,7 +5066,7 @@
 
 \begin{itemdescr}
 \pnum
-\returns \tcode{is_heap_until(first, last) == last}
+\returns \tcode{is_heap_until(first, last) == last}.
 \end{itemdescr}
 
 
@@ -5079,7 +5079,7 @@
 
 \begin{itemdescr}
 \pnum
-\returns \tcode{is_heap_until(std::forward<ExecutionPolicy>(exec), first, last) == last}
+\returns \tcode{is_heap_until(std::forward<ExecutionPolicy>(exec), first, last) == last}.
 \end{itemdescr}
 
 
@@ -5092,7 +5092,7 @@
 
 \begin{itemdescr}
 \pnum
-\returns \tcode{is_heap_until(first, last, comp) == last}
+\returns \tcode{is_heap_until(first, last, comp) == last}.
 \end{itemdescr}