strconv: update documentation
Fixes #33750.
Updates #31197.
Change-Id: I26f63cef57e5f0eec85b84554c82f6d47b4f41a1
Reviewed-on: https://go-review.googlesource.com/c/go/+/191078
Reviewed-by: Robert Griesemer <gri@golang.org>
diff --git a/src/strconv/atof.go b/src/strconv/atof.go
index 0903fa1..190b25f 100644
--- a/src/strconv/atof.go
+++ b/src/strconv/atof.go
@@ -643,7 +643,7 @@
// ParseFloat returns the nearest floating-point number rounded
// using IEEE754 unbiased rounding.
// (Parsing a hexadecimal floating-point value only rounds when
-// there are more bits in the hexadecimal representatiton than
+// there are more bits in the hexadecimal representation than
// will fit in the mantissa.)
//
// The errors that ParseFloat returns have concrete type *NumError
diff --git a/src/strconv/atoi.go b/src/strconv/atoi.go
index 31774d0..0233f14 100644
--- a/src/strconv/atoi.go
+++ b/src/strconv/atoi.go
@@ -154,7 +154,8 @@
//
// If base == 0, the base is implied by the string's prefix:
// base 2 for "0b", base 8 for "0" or "0o", base 16 for "0x",
-// and base 10 otherwise.
+// and base 10 otherwise. Also, for base == 0 only, underscore
+// characters are permitted per the Go integer literal syntax.
// If base is below 0, is 1, or is above 36, an error is returned.
//
// The bitSize argument specifies the integer type
