[2521] style cleanup: remove trailing whitespace

src/lib/dns/tests/rdata_dhcid_unittest.cc

@@ -164,6 +164,6 @@ TEST_F(Rdata_DHCID_Test, compare) {
     EXPECT_GT(rdata_dhcid3.compare(rdata_dhcid2), 0);
 
     // comparison attempt between incompatible RR types should be rejected
-    EXPECT_THROW(rdata_dhcid.compare(*rdata_nomatch), bad_cast); 
+    EXPECT_THROW(rdata_dhcid.compare(*rdata_nomatch), bad_cast);
 }
 }

src/lib/dns/tests/rdata_opt_unittest.cc

@@ -84,6 +84,6 @@ TEST_F(Rdata_OPT_Test, compare) {
                                         "rdata_opt_fromWire", 2)));
 
     // comparison attempt between incompatible RR types should be rejected
-    EXPECT_THROW(rdata_opt.compare(*RdataTest::rdata_nomatch), bad_cast); 
+    EXPECT_THROW(rdata_opt.compare(*RdataTest::rdata_nomatch), bad_cast);
 }
 }

src/lib/dns/tests/rdata_rrsig_unittest.cc

@@ -207,7 +207,7 @@ TEST_F(Rdata_RRSIG_Test, badText) {
                      "evxhlGx13mpKLVkKsjpGzycS5twtIoxOmlN14w9t5AgzGBmz"
                      "diGdLIrFabqr72af2rUq+UDBKMWXujwZTZUTws32sVldDPk/"
                      "NbuacJM25fQXfv5mO3Af7TOoow3AjMaVG9icjCW0V55WcWQU"
-                     "f49t+sXKPzbipN9g+s1ZPiIyofc="); 
+                     "f49t+sXKPzbipN9g+s1ZPiIyofc=");
     checkFromText_InvalidTime(
                      "A 5 4 43200 "
                      "EXPIRATION 20100222214617 8496 isc.org. "