apd: don't strip trailing zeros in Quo and Sqrt

context.go

@@ -362,7 +362,6 @@ func (c *Context) Quo(d, x, y *Decimal) (Condition, error) {
 	}
 
 	res |= d.setExponent(c, nd, res, shift, -adjCoeffs, -adjExp10)
-	d.Reduce(d) // remove trailing zeros
 	return c.goError(res)
 }
 
@@ -552,7 +551,6 @@ func (c *Context) Sqrt(d, x *Decimal) (Condition, error) {
 	d.Exponent += int32(e / 2)
 	nc.Precision = c.Precision
 	nc.Rounding = RoundHalfEven
-	d.Reduce(d) // remove trailing zeros
 	res := nc.round(d, d)
 	return nc.goError(res)
 }

example_test.go

@@ -36,7 +36,8 @@ func ExampleContext_overflow() {
 			return
 		}
 	}
-	// Output: d:      998, overflow: false, err: <nil>
+	// Output:
+	// d:      998, overflow: false, err: <nil>
 	// d:      999, overflow: false, err: <nil>
 	// d: Infinity, overflow:  true, err: overflow
 }
@@ -56,9 +57,10 @@ func ExampleContext_inexact() {
 			return
 		}
 	}
-	// Output: d:       9, inexact: false, err: <nil>
-	// d:       3, inexact: false, err: <nil>
-	// d:       1, inexact: false, err: <nil>
+	// Output:
+	// d:  9.0000, inexact: false, err: <nil>
+	// d:  3.0000, inexact: false, err: <nil>
+	// d:  1.0000, inexact: false, err: <nil>
 	// d: 0.33333, inexact:  true, err: <nil>
 }
 
@@ -74,7 +76,8 @@ func ExampleContext_Quantize() {
 		}
 		fmt.Println()
 	}
-	// Output: -3: 123.450
+	// Output:
+	// -3: 123.450
 	// -2: 123.45
 	// -1: 123.5 (inexact, rounded)
 	//  0: 123 (inexact, rounded)
@@ -95,7 +98,8 @@ func ExampleErrDecimal() {
 	ed.Sub(d, d, apd.New(1, 0)) // attempt to subtract 1
 	// The subtraction doesn't occur and doesn't change the error.
 	fmt.Printf("%s, err: %v\n", d, ed.Err())
-	// Output: 10, err: <nil>
+	// Output:
+	// 10, err: <nil>
 	// 30, err: <nil>
 	// Infinity, err: division by zero
 	// Infinity, err: division by zero
@@ -125,7 +129,8 @@ func ExampleContext_RoundToIntegralExact() {
 		}
 		fmt.Println()
 	}
-	// Output: input:  123.4, output: 123, integer: false, strict: false, res: inexact, rounded
+	// Output:
+	// input:  123.4, output: 123, integer: false, strict: false, res: inexact, rounded
 	// input:  123.0, output: 123, integer:  true, strict: false, res: rounded
 	// input:    123, output: 123, integer:  true, strict:  true, res:
 	// input:   12E1, output: 120, integer:  true, strict:  true, res: