defer/rcufundamental: Add non-breaking spaces

Linked list example in rcufundamental.tex misses non-breaking spaces
between 'and' and a data item.  Add it for better compilation of the
book.

Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/defer/rcufundamental.tex b/defer/rcufundamental.tex
index 39b2f7ff..5e7d6675 100644
--- a/defer/rcufundamental.tex
+++ b/defer/rcufundamental.tex
@@ -153,7 +153,7 @@ structures without disrupting concurrent readers.
 	items from a linked list while a reader is iterating over that
 	same list.
 	Specifically, suppose that a list initially contains elements
-	A, B, and C, and that an updater removes element A and then
+	A, B, and~C, and that an updater removes element A and then
 	adds a new element D at the end of the list.
 	The reader might well see \{A, B, C, D\}, when that sequence of
 	elements never actually ever existed!
@@ -163,8 +163,8 @@ structures without disrupting concurrent readers.
 	In the universe where an iterating reader is only required to
 	traverse elements that were present throughout the full duration
 	of the iteration.
-	In the example, that would be elements B and C\@.
-	Because elements A and D were each present for only part of the
+	In the example, that would be elements B and~C\@.
+	Because elements A and~D were each present for only part of the
 	iteration, the reader is permitted to iterate over them, but not
 	obliged to.
 	Note that this supports the common case where the reader is simply