lib/: Some improvements to sizes of array parameters

[alejandro-colomar]

The first commit is just readability stuff, but the second one is an important safety improvement.

Cc: @uecker

---

Revisions:

v1b

• Rebase

$ git range-diff master..gh/arrayparam shadow/master..arrayparam 
1:  208d2461 = 1:  21a2e3d7 lib/alloc/: Compact parameter names
2:  6652239e = 2:  74c8c193 lib/string/: Use array notation with forward declarations

v1c

• Rebase

$ git range-diff master..gh/arrayparam shadow/master..arrayparam 
1:  21a2e3d7 = 1:  c6b33e71 lib/alloc/: Compact parameter names
2:  74c8c193 = 2:  108e00b2 lib/string/: Use array notation with forward declarations

v1d

• Rebase

$ git range-diff master..gh/arrayparam shadow/master..arrayparam 
1:  c6b33e71 = 1:  ec3e7478 lib/alloc/: Compact parameter names
2:  108e00b2 = 2:  839aa80e lib/string/: Use array notation with forward declarations

v1e

• Rebase

$ git range-diff master..gh/arrayparam shadow/master..arrayparam 
1:  ec3e7478 = 1:  ed3d9a60 lib/alloc/: Compact parameter names
2:  839aa80e = 2:  fea5bcf1 lib/string/: Use array notation with forward declarations

v1f

• Rebase

$ git range-diff master..gh/arrayparam shadow/master..arrayparam 
1:  ed3d9a60 = 1:  639a287d lib/alloc/: Compact parameter names
2:  fea5bcf1 = 2:  40bd9363 lib/string/: Use array notation with forward declarations

v1g

• Rebase

$ git range-diff alx/master..gh/arrayparam master..arrayparam 
1:  639a287d = 1:  b20779a4 lib/alloc/: Compact parameter names
2:  40bd9363 = 2:  91af1e44 lib/string/: Use array notation with forward declarations

v1h

• Rebase

$ git range-diff alx/master..gh/arrayparam master..arrayparam 
1:  b20779a4 = 1:  3c3052ad lib/alloc/: Compact parameter names
2:  91af1e44 = 2:  133e9cca lib/string/: Use array notation with forward declarations

v1i

• Rebase

$ git range-diff master..gh/arrayparam shadow/master..arrayparam 
1:  3c3052ad = 1:  a03c31a6 lib/alloc/: Compact parameter names
2:  133e9cca = 2:  b0589f79 lib/string/: Use array notation with forward declarations

[alejandro-colomar]

Queued after the release of 4.17.0.