Patch from Yacine Belkadi that fixes a typo in an error message.

llvm-svn: 182302
diff --git a/lldb/source/Symbol/Variable.cpp b/lldb/source/Symbol/Variable.cpp
index 8b827db..bcbea2f 100644
--- a/lldb/source/Symbol/Variable.cpp
+++ b/lldb/source/Symbol/Variable.cpp
@@ -465,7 +465,7 @@
                         }
                     }
                 }
-                error.SetErrorStringWithFormat ("unable to extracta variable name from '%s'", variable_expr_path);
+                error.SetErrorStringWithFormat ("unable to extract a variable name from '%s'", variable_expr_path);
             }
             break;
         }