Log Message:
emulators/hercules4sdl: update to 4.6.

from https://sdl-hercules-390.github.io/html/hercnew.html:

Summary of Changes:
-------------------

 * SECURITY: New "\reply" SCP command to suppress command echoing of \ 
passwords
(Fish) (#541)

 * Fix endianness bug in PFPO instruction (#523)
 * Fix some endianness issues in TRTE, TRTRE, TRTE, TRTRE, TRTE and TRTRE
instructions (James Wekel) (#529)
 * Fix CODEPAGE message corruption in HERCIFC (Bill Lewis) (#525)
 * Fix some minor z/Arch Facility related bugs (Fish)
 * Fix BZIP2 API bug in hetlib.c (Fish) (#535)
 * Fix missing last dump line bug in dasdutil trace (Fish)
 * Fix crash if "ctc debug" command on unconnected CTCE device (Fish) \ 
(#536)
 * Fix segfault in 370 mode IPL (Bill Lewis) (#538)
 * Fix to show version and help if no arguments given (Fish) (#540, #548)
 * Fix incorrect NUMCPU/ARCHLVL/etc handling causing occasional hang (Fish)
(#542)
 * Fix branding SNAFU: "SDL" does NOT mean this Hercules is a \ 
"SoftDevLabs"
product! (Fish)
 * Fix bug causing MVT guest to fail (Fish)
 * Fix Program check detection if PER trace active (Fish) (#560)

 * New: 'QUITMOUT' command/statement, per user request (Fish)
 * NEW: "Trace to File" support (Fish) (#33)
 * New "t+CPU [cpuad]" selective instruction tracing by CPU (Fish)
 * NEW: Sockdev socket punch support (Fish) (#553)
 * New 'txt2card' utility (Fish)

 * Don't enable STHYI/ESSA by default (#531)
 * Improve PFPO instruction conformance (Fish)
 * Add single devnum support to CKD Search Key trace command (Fish)
 * Enhance "t?" command to also show active device tracing (Fish)
 * Improve CCW tracing (Fish)
 * Add "ADDFRR" MVS assist (Jay Maynard) (#537)
 * Better HMC message handling for s390x Linux guests (Fish) (#534)
 * Document MAKETAPE via README (Fish)
 * Add support for dasd X'F7' (DSO = Define Subsystem Operation) CCW (Fish)
(#547)
 * DASDLOAD: Increase MAXDSCB and allow cmdline override (Fish) (#566)