awk: Merge one true awk 20250804 bsd-feature branch

Merge in the latest one true awk to pick up two small bug fixes:

    Aug 04, 2025
            Fix incorrect divisor in rand() - it was returning
            even random numbers only. Thanks to Ozan Yigit.

            Fix a syntax issue with /= that caused constants to
            turn into variables [eg. 42 /= 7]. Thanks to Arnold
            Robbins.

Note: vendor/one-true-awk/4d5b3604b34b_1 was the merge tag.

Sponsored by:		Netflix

3 files changed, 12 insertions, 2 deletions

diff --git a/contrib/one-true-awk/FIXES b/contrib/one-true-awk/FIXES
index b3bf38f0aa1c..b876b9ec5ec9 100644
--- a/contrib/one-true-awk/FIXES
+++ b/contrib/one-true-awk/FIXES
@@ -25,6 +25,14 @@ THIS SOFTWARE.
 This file lists all bug fixes, changes, etc., made since the 
 second edition of the AWK book was published in September 2023.
 
+Aug 04, 2025
+	Fix incorrect divisor in rand() - it was returning
+	even random numbers only. Thanks to Ozan Yigit.
+
+	Fix a syntax issue with /= that caused constants to
+	turn into variables [eg. 42 /= 7]. Thanks to Arnold
+	Robbins.
+
 Jan 14, 2025
 	Fix incorrect error line number issues. unput has
 	no business managing lineno. Thanks to Ozan Yigit.
diff --git a/contrib/one-true-awk/main.c b/contrib/one-true-awk/main.c
index 361c23e70861..b8053af34b05 100644
--- a/contrib/one-true-awk/main.c
+++ b/contrib/one-true-awk/main.c
@@ -22,7 +22,7 @@ ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
 THIS SOFTWARE.
 ****************************************************************/
 
-const char	*version = "version 20250116";
+const char	*version = "version 20250804";
 
 #define DEBUG
 #include <stdio.h>
diff --git a/contrib/one-true-awk/run.c b/contrib/one-true-awk/run.c
index eaddfdecbdd3..9bc07a517372 100644
--- a/contrib/one-true-awk/run.c
+++ b/contrib/one-true-awk/run.c
@@ -1567,6 +1567,8 @@ Cell *assign(Node **a, int n)	/* a[0] = a[1], a[0] += a[1], etc. */
 		xf *= yf;
 		break;
 	case DIVEQ:
+		if ((x->tval & CON) != 0)
+			FATAL("non-constant required for left side of /=");
 		if (yf == 0)
 			FATAL("division by zero in /=");
 		xf /= yf;
@@ -2188,7 +2190,7 @@ Cell *bltin(Node **a, int n)	/* builtin functions. a[0] is type, a[1] is arg lis
 		/* random() returns numbers in [0..2^31-1]
 		 * in order to get a number in [0, 1), divide it by 2^31
 		 */
-		u = (Awkfloat) random() / (0x7fffffffL + 0x1UL);
+		u = (Awkfloat) random() / RAND_MAX;
 		break;
 	case FSRAND:
 		if (isrec(x))	/* no argument provided */