fix(install): rectify unused function args in log.c

Signed-off-by: Shreenidhi Shedi <sshedi@vmware.com>

src/install/log.c

@@ -103,10 +103,12 @@ void log_set_facility(int facility)
 
 static int write_to_console(int level, const char *file, unsigned int line, const char *func, const char *buffer)
 {
-
         struct iovec iovec[5];
         unsigned int n = 0;
 
+        // might be useful going ahead
+        UNUSED(level);
+
         if (console_fd < 0)
                 return 0;
 
@@ -115,8 +117,8 @@ static int write_to_console(int level, const char *file, unsigned int line, cons
         IOVEC_SET_STRING(iovec[n++], "dracut-install: ");
 
         if (show_location) {
-                char location[64];
-                if (snprintf(location, sizeof(location), "(%s:%u) ", file, line) <= 0)
+                char location[LINE_MAX] = {0};
+                if (snprintf(location, sizeof(location), "(%s:%s:%u) ", file, func, line) <= 0)
                         return -errno;
                 IOVEC_SET_STRING(iovec[n++], location);
         }

src/install/macro.h

@@ -293,4 +293,7 @@ do {                                                                    \
                 _ptr_;                          \
         })
 
+/* Use to suppress unused variable/function arg warning */
+#define UNUSED(var)   ((void)var)
+
 #include "log.h"