lib/ini: append variable into section before any empty lines

Previously, appending a new variable into section always create an empty
line before after the variable.
For example, given the following section,

  [a]
  k = v

  [c]

append "k2=v2" to section "a" will result

  [a]
  k = v

  k2=v

  [c]

This changes fix this by appending variable only after non-empty lines,
which result to

  [a]
  k = v
  k2= v

  [c]

While at it, add empty space before variable value.

2 files changed, 42 insertions, 0 deletions

diff --git a/lib/ini/testdata/set.ini b/lib/ini/testdata/set.ini
new file mode 100644
index 00000000..5882f109
--- /dev/null
+++ b/lib/ini/testdata/set.ini
@@ -0,0 +1,5 @@
+[host]
+ip_internal = 127.0.0.1
+
+[host "ms"]
+ip_internal = 127.1.0.1
diff --git a/lib/ini/testdata/set_test.data b/lib/ini/testdata/set_test.data
new file mode 100644
index 00000000..30b7fadd
--- /dev/null
+++ b/lib/ini/testdata/set_test.data
@@ -0,0 +1,37 @@
+Test data for Ini Set method.
+
+<<< case#1
+[host]
+ip_internal = 127.0.0.2
+
+[host "ms"]
+ip_internal = 127.1.0.1
+
+
+<<< case#2
+[host]
+ip_internal = 127.0.0.2
+ip_external = 192.168.100.205
+
+[host "ms"]
+ip_internal = 127.1.0.1
+
+
+<<< case#3
+[host]
+ip_internal = 127.0.0.2
+ip_external = 192.168.100.205
+
+[host "ms"]
+ip_internal = 127.1.0.2
+
+
+<<< case#4
+[host]
+ip_internal = 127.0.0.2
+ip_external = 192.168.100.205
+
+[host "ms"]
+ip_internal = 127.1.0.2
+ip_external = 192.168.56.10
+