[gtksourceview] javascript.lang: Fix misspelled word in comment

[Christian Hergert <chergert src gnome org>]

commit 3931bd91c35277784c271b8c9eaef94c4523f8d9
Author: Jeffery To <jeffery to gmail com>
Date:   Thu Nov 14 04:12:28 2019 +0800

    javascript.lang: Fix misspelled word in comment

 data/language-specs/javascript-expressions.lang | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/language-specs/javascript-expressions.lang b/data/language-specs/javascript-expressions.lang
index 5285196d..cf579b9e 100644
--- a/data/language-specs/javascript-expressions.lang
+++ b/data/language-specs/javascript-expressions.lang
@@ -544,7 +544,7 @@
     <!-- excluding comma operator -->
     <define-regex id="_binary-operator" extended="true">
       (?:
-        \*\* =? |                            # expotentiation (assignment) (ES2016)
+        \*\* =? |                            # exponentiation (assignment) (ES2016)
         [+/*%-] =? |                         # arithmetic (assignment)
         [!=]==? |                            # equality
         &amp;&amp; | \|\| |                  # logical