Fix a bunch of typos (#2693)
fix a bunch of types in man pages, docs, tools, tests, src and examples.
diff --git a/tools/nfsslower.py b/tools/nfsslower.py
index 36918ca..5e344b9 100755
--- a/tools/nfsslower.py
+++ b/tools/nfsslower.py
@@ -22,7 +22,7 @@
#
# This tool uses kprobes to instrument the kernel for entry and exit
# information, in the future a preferred way would be to use tracepoints.
-# Currently there are'nt any tracepoints available for nfs_read_file,
+# Currently there aren't any tracepoints available for nfs_read_file,
# nfs_write_file and nfs_open_file, nfs_getattr does have entry and exit
# tracepoints but we chose to use kprobes for consistency
#