Use internal function

See https://discourse.julialang.org/t/psa-replacement-of-ind2sub-sub2ind-in-julia-0-7/14666/20 on discussion about the deprecation of ind2sub and sub2ind

Author: Planeshifter

lib/node_modules/@stdlib/ndarray/base/ind2sub/benchmark/julia/benchmark.jl

@@ -107,7 +107,7 @@ julia> out = benchmark();
 ```
 """
 function benchmark()
-	t = BenchmarkTools.@benchmark ind2sub( (10,10,10), Int32( floor( rand()*1000.0 ) ) ) samples=1e6
+	t = BenchmarkTools.@benchmark Base._ind2sub( (10,10,10), Int32( floor( rand()*1000.0 ) ) ) samples=1e6
 
 	# Compute the total "elapsed" time and convert from nanoseconds to seconds:
 	s = sum( t.times ) / 1.0e9;

lib/node_modules/@stdlib/ndarray/ind2sub/benchmark/julia/benchmark.jl

@@ -107,7 +107,7 @@ julia> out = benchmark();
 ```
 """
 function benchmark()
-	t = BenchmarkTools.@benchmark ind2sub( (10,10,10), Int32( floor( rand()*1000.0 ) ) ) samples=1e6
+	t = BenchmarkTools.@benchmark Base._ind2sub( (10,10,10), Int32( floor( rand()*1000.0 ) ) ) samples=1e6
 
 	# Compute the total "elapsed" time and convert from nanoseconds to seconds:
 	s = sum( t.times ) / 1.0e9;