fix(logpdf): enforce correct variable sorting and JSON formatting

Signed-off-by: Kamal Singh Rautela <e22cseu1624@bennett.edu.in>

Author: rautelaKamal

lib/node_modules/@stdlib/stats/base/dists/lognormal/cdf/test/fixtures/julia/large_variance.json

@@ -43,9 +43,9 @@ bench( format( '%s::native', pkg ), opts, function benchmark( b ) {
 	var sigma;
 	var opts;
 	var mu;
+	var i;
 	var x;
 	var y;
-	var i;
 
 	opts = {
 		'dtype': 'float64'

lib/node_modules/@stdlib/stats/base/dists/lognormal/cdf/test/fixtures/julia/negative_mean.json

@@ -104,13 +104,13 @@ tape( 'if provided a nonpositive `sigma`, the function returns `NaN`', opts, fun
 
 tape( 'the function evaluates the logpdf for `x` given positive `mu`', opts, function test( t ) {
 	var expected;
-	var sigma;
 	var delta;
+	var sigma;
 	var tol;
 	var mu;
+	var i;
 	var x;
 	var y;
-	var i;
 
 	expected = positiveLocation.expected;
 	x = positiveLocation.x;
@@ -133,13 +133,13 @@ tape( 'the function evaluates the logpdf for `x` given positive `mu`', opts, fun
 
 tape( 'the function evaluates the logpdf for `x` given negative `mu`', opts, function test( t ) {
 	var expected;
-	var sigma;
 	var delta;
+	var sigma;
 	var tol;
 	var mu;
+	var i;
 	var x;
 	var y;
-	var i;
 
 	expected = negativeLocation.expected;
 	x = negativeLocation.x;
@@ -162,13 +162,13 @@ tape( 'the function evaluates the logpdf for `x` given negative `mu`', opts, fun
 
 tape( 'the function evaluates the logpdf for `x` given large variance ( = large `sigma` )', opts, function test( t ) {
 	var expected;
-	var sigma;
 	var delta;
+	var sigma;
 	var tol;
 	var mu;
+	var i;
 	var x;
 	var y;
-	var i;
 
 	expected = largeVariance.expected;
 	x = largeVariance.x;