Slightly changed unit test to avoid false alarms.

dlib/test/svm_c_linear_dcd.cpp

@@ -161,7 +161,7 @@ namespace
 
                 DLIB_TEST( std::abs(df2.basis_vectors(0)(9)) < 1e-7);
                 DLIB_TEST_MSG( max(abs(colm(df.basis_vectors(0),0,9) - colm(df2.basis_vectors(0),0,9))) < 1e-6, max(abs(colm(df.basis_vectors(0),0,9) - colm(df2.basis_vectors(0),0,9))));
-                DLIB_TEST( std::abs(df.basis_vectors(0)(9) - df2.b) < 1e-7);
+                DLIB_TEST( std::abs(df.basis_vectors(0)(9) - df2.b) < 1e-6);
                 DLIB_TEST( max(abs(df.basis_vectors(0) - df3.basis_vectors(0))) < 1e-6);
                 DLIB_TEST( std::abs(df.b - df3.b) < 1e-7);
             }