Address unitialized variable compiler warnings

Either initialize unitialized variables to sensible values, or supress
the warning in case the variable is always correctly initialized.

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>

chkfont.c

@@ -106,6 +106,9 @@ exit(1);
 }
 
 
+/* Don't warn on unitialized expected_width and expected_endmark */
+#pragma GCC diagnostic ignored "-Wuninitialized"
+
 void readchar()
 {
 int i,expected_width,k,len,newlen,diff,l;

figlet.c

@@ -1539,6 +1539,7 @@ void splitline()
   part1 = (inchr*)myalloc(sizeof(inchr)*(inchrlinelen+1));
   part2 = (inchr*)myalloc(sizeof(inchr)*(inchrlinelen+1));
   gotspace = 0;
+  lastspace = inchrlinelen-1;
   for (i=inchrlinelen-1;i>=0;i--) {
     if (!gotspace && inchrline[i]==' ') {
       gotspace = 1;

zipio.c

@@ -35,6 +35,7 @@
  *
  * Changes from 1.1.1 to 1.1.2:
  * Relicensed under the MIT license, with consent of the copyright holders.
+ * Avoid usage of unitialized "length" variable in _Zgetc
  * Claudio Matsuoka (Jan 11 2011)
  */
 
@@ -681,11 +682,11 @@ int _Zgetc(ZFILE *stream)
 
   /* If data isn't in current outbuf, get it */
   offset = ZS->fileposition & ~((long) (OUTBUFSIZE-1));
+  length = ZS->usiz - offset;
+  if (length > OUTBUFSIZE) length = OUTBUFSIZE;
+
   if (ZS->getoff != offset)
   {
-    length = ZS->usiz - offset;
-    if (length > OUTBUFSIZE) length = OUTBUFSIZE;
-
     if (BufferRead(ZS, offset, ZS->getbuf, length)) return -1;
 
     ZS->getoff = offset;