Escape ` and ' in doc

Escape apostrophes and grave accents in docstrings if they are
are supposed to stand for themselves and are not quotes.  Remove
apostrophes from docstring examples like ‘'(calendar-nth-named-day
-1 0 10 year)’ that confuse source code with data.  Do some other
minor docstring fixups as well, e.g., insert a missing close
quote.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/category.c b/src/category.c
index ab90f5ff093..bb4a75d3a4d 100644
--- a/src/category.c
+++ b/src/category.c
@@ -491,7 +491,7 @@ between C1 and C2.
 
 For instance, to tell that there's a word boundary between Hiragana
 and Katakana (both are in the same script `kana'),
-the element `(?H . ?K) should be in this list.  */);
+the element `(?H . ?K)' should be in this list.  */);
 
   Vword_combining_categories = Qnil;