386915fb7bdbae22f8ed152174d8b8635524c1b2
galt
  Sun Oct 28 00:51:33 2018 -0700
code review fixes to hgBlat Search ALL. refs #22251

diff --git src/lib/common.c src/lib/common.c
index 17debeb..ac691e5 100644
--- src/lib/common.c
+++ src/lib/common.c
@@ -3404,43 +3404,38 @@
 }
 
 void safencat(char *buf, size_t bufSize, const char *src, size_t n)
 /* append n characters from a string to a buffer, with bounds checking. */
 {
 size_t blen = strlen(buf);
 if (blen+n > bufSize-1)
     errAbort("buffer overflow, size %lld, new string size: %lld", (long long)bufSize, (long long)(blen+n));
 size_t slen = strlen(src);
 if (slen > n)
     slen = n;
 strncat(buf, src, n);
 buf[blen+slen] = '\0';
 }
 
-void safecatRepeatChar(char *buf, size_t bufSize, const char c, int n)
-/* Append a character to a buffer, n times with bounds checking.*/
+void safememset(char *buf, size_t bufSize, const char c, size_t n)
+/* Append a character to a buffer repeatedly, n times with bounds checking.*/
 {
-if (n < 0)
-    errAbort("safecatRepeatChar called with invalid negative count %d", n);
 size_t blen = strlen(buf);
-size_t slen = n;
-if (blen+slen > bufSize-1)
-    errAbort("buffer overflow, size %lld, new string size: %lld", (long long)bufSize, (long long)(blen+slen));
-int i;
-for(i=0; i < slen; ++i)
-    buf[blen+i] = c;
-buf[blen+slen] = 0;
+if (blen+n+1 > bufSize)
+    errAbort("buffer overflow, size %lld, new string size: %lld", (long long)bufSize, (long long)(blen+n));
+memset(buf+blen, c, n);
+buf[blen+n] = 0;
 }
 
 
 static char *naStr = "n/a";
 static char *emptyStr = "";
 
 char *naForNull(char *s)
 /* Return 'n/a' if s is NULL, otherwise s. */
 {
 if (s == NULL)
    s = naStr;
 return s;
 }
 
 char *naForEmpty(char *s)