3 files changed, 6 insertions, 6 deletions
diff --git a/ext/dl/cfunc.c b/ext/dl/cfunc.c
index 92b2d34cbb..6907e43e1c 100644
--- a/ext/dl/cfunc.c
+++ b/ext/dl/cfunc.c
@@ -237,7 +237,7 @@ rb_dlcfunc_inspect(VALUE self)
   CASE(6); break; CASE(7); break; CASE(8); break; CASE(9); break; CASE(10);break; \
   CASE(11);break; CASE(12);break; CASE(13);break; CASE(14);break; CASE(15);break; \
   CASE(16);break; CASE(17);break; CASE(18);break; CASE(19);break; CASE(20);break; \
-  default: rb_raise(rb_eArgError, "too many arguments."); \
+  default: rb_raise(rb_eArgError, "too many arguments"); \
 }
 
 
@@ -257,7 +257,7 @@ rb_dlcfunc_call(VALUE self, VALUE ary)
     Data_Get_Struct(self, struct cfunc_data, cfunc);
 
     if( cfunc->ptr == 0 ){
-	rb_raise(rb_eDLError, "can't call null-function.");
+	rb_raise(rb_eDLError, "can't call null-function");
 	return Qnil;
     }
     
diff --git a/ext/dl/cptr.c b/ext/dl/cptr.c
index 18df5c8a38..66a7255ef8 100644
--- a/ext/dl/cptr.c
+++ b/ext/dl/cptr.c
@@ -430,7 +430,7 @@ rb_dlptr_s_to_ptr(VALUE self, VALUE val)
 	    return vptr;
 	}
 	else{
-	    rb_raise(rb_eDLError, "to_ptr should return a CPtr object.");
+	    rb_raise(rb_eDLError, "to_ptr should return a CPtr object");
 	}
     }
     else{
diff --git a/ext/dl/handle.c b/ext/dl/handle.c
index 7f7eddfd18..eaeb3d67a9 100644
--- a/ext/dl/handle.c
+++ b/ext/dl/handle.c
@@ -155,7 +155,7 @@ rb_dlhandle_sym(VALUE self, VALUE sym)
 
     Data_Get_Struct(self, struct dl_handle, dlhandle);
     if( ! dlhandle->open ){
-	rb_raise(rb_eDLError, "Closed handle.");
+	rb_raise(rb_eDLError, "closed handle");
     }
     handle = dlhandle->ptr;
 
@@ -187,7 +187,7 @@ rb_dlhandle_sym(VALUE self, VALUE sym)
 		}
 		CHECK_DLERROR;
 		if( !func ){
-		    rb_raise(rb_eDLError, "Unknown symbol \"%s\".", name);
+		    rb_raise(rb_eDLError, "unknown symbol \"%s\"", name);
 		}
 	    }
 	}
@@ -205,7 +205,7 @@ rb_dlhandle_sym(VALUE self, VALUE sym)
 	}
 	CHECK_DLERROR;
         if( !func ){
-	    rb_raise(rb_eDLError, "Unknown symbol \"%s\".", name);
+	    rb_raise(rb_eDLError, "unknown symbol \"%s\"", name);
 	}
 #endif
     }