docs: cleanup typos on readthrough

Type: style

Change-Id: I3b15035ea6c13cd1ca3cdc9dfa9b10a6e1be9880
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
diff --git a/docs/gettingstarted/developers/gdb_examples.rst b/docs/gettingstarted/developers/gdb_examples.rst
index 71340da..8939877 100644
--- a/docs/gettingstarted/developers/gdb_examples.rst
+++ b/docs/gettingstarted/developers/gdb_examples.rst
@@ -32,7 +32,7 @@
     (gdb) bt
     #0  ip4_icmp_input (vm=0x7ffff7b89a40 <vlib_global_main>, node=0x7fffb6bb6900, frame=0x7fffb6725ac0) at /scratch/vpp-master/build-data/../src/vnet/ip/icmp4.c:187
     #1  0x00007ffff78da4be in dispatch_node (vm=0x7ffff7b89a40 <vlib_global_main>, node=0x7fffb6bb    6900, type=VLIB_NODE_TYPE_INTERNAL, dispatch_state=VLIB_NODE_STATE_POLLING, frame=0x7fffb6725ac0, last_time_stamp=10581236529    65565) at /scratch/vpp-master/build-data/../src/vlib/main.c:988
-    #2  0x00007ffff78daa77 in dispatch_pending_node (vm=0x7ffff7b89a40 <vlib_global_main>, pending_f    rame_index=6, last_time_stamp=1058123652965565) at /scratch/vpp-master/build-data/../src/vlib/main.c:1138
+    #2  0x00007ffff78daa77 in dispatch_pending_node (vm=0x7ffff7b89a40 <vlib_global_main>, pending_frame_index=6, last_time_stamp=1058123652965565) at /scratch/vpp-master/build-data/../src/vlib/main.c:1138
     ....
 
 Get to the GDB prompt