[Fix #547] Fix character literal regexp (#560)

Author: yuhan0

clojure-mode-font-lock-test.el

@@ -884,15 +884,30 @@ DESCRIPTION is the description of the spec."
     ("\\a"
      (1 2 clojure-character-face))
 
+    ("\\A"
+     (1 2 clojure-character-face))
+
     ("\\newline"
      (1 8 clojure-character-face))
 
+    ("\\abc"
+     (1 4 nil))
+
+    ("\\newlin"
+     (1 7 nil))
+
+    ("\\newlinex"
+     (1 9 nil))
+
     ("\\1"
      (1 2 clojure-character-face))
 
     ("\\u0032"
      (1 6 clojure-character-face))
 
+    ("\\o127"
+     (1 4 clojure-character-face))
+
     ("\\+"
      (1 2 clojure-character-face))
 
@@ -903,6 +918,12 @@ DESCRIPTION is the description of the spec."
      (1 2 clojure-character-face))
 
     ("\\;"
+     (1 2 clojure-character-face))
+
+    ("\\Ω"
+     (1 2 clojure-character-face))
+
+    ("\\ク"
      (1 2 clojure-character-face)))
 
   (when-fontifying-it "should handle referred vars"