Some fixes...

* read_config_file.c: initialise pt stack argument to stop warning
* summary.c: make show_summary() obey -C for demangaling function names
diff --git a/sysdeps/linux-gnu/breakpoint.c b/sysdeps/linux-gnu/breakpoint.c
index 38a68cc..5701c15 100644
--- a/sysdeps/linux-gnu/breakpoint.c
+++ b/sysdeps/linux-gnu/breakpoint.c
@@ -9,41 +9,49 @@
 
 static unsigned char break_insn[] = BREAKPOINT_VALUE;
 
-void
-enable_breakpoint(pid_t pid, struct breakpoint * sbp) {
-	int i,j;
+void enable_breakpoint(pid_t pid, struct breakpoint *sbp)
+{
+	int i, j;
 
-	if (opt_d>1) {
+	if (opt_d > 1) {
 		output_line(0, "enable_breakpoint(%d,%p)", pid, sbp->addr);
 	}
 
-	for(i=0; i < 1+((BREAKPOINT_LENGTH-1)/sizeof(long)); i++) {
-		long a = ptrace(PTRACE_PEEKTEXT, pid, sbp->addr + i*sizeof(long), 0);
-		for(j=0; j<sizeof(long) && i*sizeof(long)+j < BREAKPOINT_LENGTH; j++) {
-			unsigned char * bytes = (unsigned char *)&a;
+	for (i = 0; i < 1 + ((BREAKPOINT_LENGTH - 1) / sizeof(long)); i++) {
+		long a =
+		    ptrace(PTRACE_PEEKTEXT, pid, sbp->addr + i * sizeof(long),
+			   0);
+		for (j = 0;
+		     j < sizeof(long)
+		     && i * sizeof(long) + j < BREAKPOINT_LENGTH; j++) {
+			unsigned char *bytes = (unsigned char *)&a;
 
-			sbp->orig_value[i*sizeof(long)+j] = bytes[+j];
-			bytes[j] = break_insn[i*sizeof(long)+j];
+			sbp->orig_value[i * sizeof(long) + j] = bytes[+j];
+			bytes[j] = break_insn[i * sizeof(long) + j];
 		}
-		ptrace(PTRACE_POKETEXT, pid, sbp->addr + i*sizeof(long), a);
+		ptrace(PTRACE_POKETEXT, pid, sbp->addr + i * sizeof(long), a);
 	}
 }
 
-void
-disable_breakpoint(pid_t pid, const struct breakpoint * sbp) {
-	int i,j;
+void disable_breakpoint(pid_t pid, const struct breakpoint *sbp)
+{
+	int i, j;
 
-	if (opt_d>1) {
+	if (opt_d > 1) {
 		output_line(0, "disable_breakpoint(%d,%p)", pid, sbp->addr);
 	}
 
-	for(i=0; i < 1+((BREAKPOINT_LENGTH-1)/sizeof(long)); i++) {
-		long a = ptrace(PTRACE_PEEKTEXT, pid, sbp->addr + i*sizeof(long), 0);
-		for(j=0; j<sizeof(long) && i*sizeof(long)+j < BREAKPOINT_LENGTH; j++) {
-			unsigned char * bytes = (unsigned char *)&a;
+	for (i = 0; i < 1 + ((BREAKPOINT_LENGTH - 1) / sizeof(long)); i++) {
+		long a =
+		    ptrace(PTRACE_PEEKTEXT, pid, sbp->addr + i * sizeof(long),
+			   0);
+		for (j = 0;
+		     j < sizeof(long)
+		     && i * sizeof(long) + j < BREAKPOINT_LENGTH; j++) {
+			unsigned char *bytes = (unsigned char *)&a;
 
-			bytes[j] = sbp->orig_value[i*sizeof(long)+j];
+			bytes[j] = sbp->orig_value[i * sizeof(long) + j];
 		}
-		ptrace(PTRACE_POKETEXT, pid, sbp->addr + i*sizeof(long), a);
+		ptrace(PTRACE_POKETEXT, pid, sbp->addr + i * sizeof(long), a);
 	}
 }