Stopped supported -0 as a float output because (a) it is non-portable, only...

Stopped supported -0 as a float output because (a) it is non-portable, only existing on some architectures and (b) relies on the undefined behavior of 1.0/0.0

src/unity.c

@@ -429,14 +429,14 @@ void UnityPrintFloat(const UNITY_DOUBLE input_number)
     UNITY_DOUBLE number = input_number;
 
     /* print minus sign (including for negative zero) */
-    if ((number < 0.0f) || ((number == 0.0f) && ((1.0f / number) < 0.0f)))
+    if (number < 0.0f)
     {
         UNITY_OUTPUT_CHAR('-');
         number = -number;
     }
 
     /* handle zero, NaN, and +/- infinity */
-    if (number == 0.0f)
+    if (number == 0.0f) 
     {
         UnityPrint("0");
     }

test/tests/testunity.c

@@ -7722,7 +7722,7 @@ void testDoublePrinting(void)
     TEST_ASSERT_EQUAL_PRINT_FLOATING("16.0000006",    16.0000006);
     TEST_ASSERT_EQUAL_PRINT_FLOATING("999999999",     999999999.0); /*Last full print integer*/
 
-    TEST_ASSERT_EQUAL_PRINT_FLOATING("-0",             -0.0);
+    TEST_ASSERT_EQUAL_PRINT_FLOATING("0",              -0.0); /* -0 no supported on all targets */
     TEST_ASSERT_EQUAL_PRINT_FLOATING("-4.99e-07",      -0.000000499);
     TEST_ASSERT_EQUAL_PRINT_FLOATING("-5.0000005e-07", -0.00000050000005);
     TEST_ASSERT_EQUAL_PRINT_FLOATING("-0.100469499",   -0.100469499);