beb42d71a0 Silence GCC 7 warning "control reaches end of non-void function" (-Wreturn-type) in psbt.cpp (practicalswift)
Pull request description:
Silence GCC 7 warning "control reaches end of non-void function" (`-Wreturn-type`) in `psbt.cpp`.
Context: ef22fe8c1f (r33370109)
Before this patch:
```
$ ./configure CC=gcc-7 CXX=g++-7
$ make 2>&1 | grep -A2 "warning: "
leveldb/util/logging.cc:58:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
(v == kMaxUint64/10 && delta > kMaxUint64%10)) {
~~~~~~^~~~~~~~~~~~~~~
--
leveldb/port/port_posix.cc:60:15: warning: ‘ecx’ may be used uninitialized in this function [-Wmaybe-uninitialized]
return (ecx & (1 << 20)) != 0;
~~~~~^~~~~~~~~~~~
--
psbt.cpp:341:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
$
```
After this patch:
```
$ ./configure CC=gcc-7 CXX=g++-7
$ make 2>&1 | grep -A2 "warning: "
leveldb/util/logging.cc:58:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
(v == kMaxUint64/10 && delta > kMaxUint64%10)) {
~~~~~~^~~~~~~~~~~~~~~
--
leveldb/port/port_posix.cc:60:15: warning: ‘ecx’ may be used uninitialized in this function [-Wmaybe-uninitialized]
return (ecx & (1 << 20)) != 0;
~~~~~^~~~~~~~~~~~
$
```
ACKs for commit beb42d:
Tree-SHA512: b068b9aef565cae0bd1fa1f79c8d422ed2c3e7645edfa14a780a36dd66095a3c627f4111a6b16e706ce6c8abafe51725af8b3bf60778821de0aa8f6193bfadf8
c1ba1182eb