Spell symbol correctly

Author: copiousfreetime

src/main/ruby/core/process.rb

@@ -144,7 +144,7 @@ def self.clock_gettime(id, unit=:float_second)
   end
 
   def self.normalize_clock_id(id)
-    return id unless id.is_a?(Symobl)
+    return id unless id.is_a?(Symbol)
     case id
     when :GETTIMEOFDAY_BASED_CLOCK_REALTIME,
          :TIME_BASED_CLOCK_REALTIME