virlog: Fix build breaker with "comparison between signed and unsigned"

Refactor series 0b231195 worked with virLogDestination type which, depending
on the compiler, might be (and probably will be) an unsigned data type.
However, virEnumFromString may return -1 in case of an error. So, when enum
happens to be unsigned, some compilers will naturally complain about foo:
    'if (foo < 0)'

diff --git a/src/util/virlog.c b/src/util/virlog.c
index 591d38e413f55dc82c162add485d6b163eb8888b..007fc65ebfa266ddb5f6c3c50ee3d4429744c235 100644 (file)
--- a/src/util/virlog.c
+++ b/src/util/virlog.c
@@ -1088,7 +1088,7 @@ virLogParseOutput(const char *src)
     char *abspath = NULL;
     size_t count = 0;
     virLogPriority prio;
-    virLogDestination dest;
+    int dest;
     bool isSUID = virIsSUID();
 
     if (!src)